//! moment.js

;(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	global.moment = factory()
}(this, (function () { 'use strict';

	var hookCallback;

	function hooks () {
			return hookCallback.apply(null, arguments);
	}

	// This is done to register the method called with moment()
	// without creating circular dependencies.
	function setHookCallback (callback) {
			hookCallback = callback;
	}

	function isArray(input) {
			return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
	}

	function isObject(input) {
			// IE8 will treat undefined and null as object if it wasn't for
			// input != null
			return input != null && Object.prototype.toString.call(input) === '[object Object]';
	}

	function isObjectEmpty(obj) {
			if (Object.getOwnPropertyNames) {
					return (Object.getOwnPropertyNames(obj).length === 0);
			} else {
					var k;
					for (k in obj) {
							if (obj.hasOwnProperty(k)) {
									return false;
							}
					}
					return true;
			}
	}

	function isUndefined(input) {
			return input === void 0;
	}

	function isNumber(input) {
			return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
	}

	function isDate(input) {
			return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
	}

	function map(arr, fn) {
			var res = [], i;
			for (i = 0; i < arr.length; ++i) {
					res.push(fn(arr[i], i));
			}
			return res;
	}

	function hasOwnProp(a, b) {
			return Object.prototype.hasOwnProperty.call(a, b);
	}

	function extend(a, b) {
			for (var i in b) {
					if (hasOwnProp(b, i)) {
							a[i] = b[i];
					}
			}

			if (hasOwnProp(b, 'toString')) {
					a.toString = b.toString;
			}

			if (hasOwnProp(b, 'valueOf')) {
					a.valueOf = b.valueOf;
			}

			return a;
	}

	function createUTC (input, format, locale, strict) {
			return createLocalOrUTC(input, format, locale, strict, true).utc();
	}

	function defaultParsingFlags() {
			// We need to deep clone this object.
			return {
					empty           : false,
					unusedTokens    : [],
					unusedInput     : [],
					overflow        : -2,
					charsLeftOver   : 0,
					nullInput       : false,
					invalidMonth    : null,
					invalidFormat   : false,
					userInvalidated : false,
					iso             : false,
					parsedDateParts : [],
					meridiem        : null,
					rfc2822         : false,
					weekdayMismatch : false
			};
	}

	function getParsingFlags(m) {
			if (m._pf == null) {
					m._pf = defaultParsingFlags();
			}
			return m._pf;
	}

	var some;
	if (Array.prototype.some) {
			some = Array.prototype.some;
	} else {
			some = function (fun) {
					var t = Object(this);
					var len = t.length >>> 0;

					for (var i = 0; i < len; i++) {
							if (i in t && fun.call(this, t[i], i, t)) {
									return true;
							}
					}

					return false;
			};
	}

	function isValid(m) {
			if (m._isValid == null) {
					var flags = getParsingFlags(m);
					var parsedParts = some.call(flags.parsedDateParts, function (i) {
							return i != null;
					});
					var isNowValid = !isNaN(m._d.getTime()) &&
							flags.overflow < 0 &&
							!flags.empty &&
							!flags.invalidMonth &&
							!flags.invalidWeekday &&
							!flags.weekdayMismatch &&
							!flags.nullInput &&
							!flags.invalidFormat &&
							!flags.userInvalidated &&
							(!flags.meridiem || (flags.meridiem && parsedParts));

					if (m._strict) {
							isNowValid = isNowValid &&
									flags.charsLeftOver === 0 &&
									flags.unusedTokens.length === 0 &&
									flags.bigHour === undefined;
					}

					if (Object.isFrozen == null || !Object.isFrozen(m)) {
							m._isValid = isNowValid;
					}
					else {
							return isNowValid;
					}
			}
			return m._isValid;
	}

	function createInvalid (flags) {
			var m = createUTC(NaN);
			if (flags != null) {
					extend(getParsingFlags(m), flags);
			}
			else {
					getParsingFlags(m).userInvalidated = true;
			}

			return m;
	}

	// Plugins that add properties should also add the key here (null value),
	// so we can properly clone ourselves.
	var momentProperties = hooks.momentProperties = [];

	function copyConfig(to, from) {
			var i, prop, val;

			if (!isUndefined(from._isAMomentObject)) {
					to._isAMomentObject = from._isAMomentObject;
			}
			if (!isUndefined(from._i)) {
					to._i = from._i;
			}
			if (!isUndefined(from._f)) {
					to._f = from._f;
			}
			if (!isUndefined(from._l)) {
					to._l = from._l;
			}
			if (!isUndefined(from._strict)) {
					to._strict = from._strict;
			}
			if (!isUndefined(from._tzm)) {
					to._tzm = from._tzm;
			}
			if (!isUndefined(from._isUTC)) {
					to._isUTC = from._isUTC;
			}
			if (!isUndefined(from._offset)) {
					to._offset = from._offset;
			}
			if (!isUndefined(from._pf)) {
					to._pf = getParsingFlags(from);
			}
			if (!isUndefined(from._locale)) {
					to._locale = from._locale;
			}

			if (momentProperties.length > 0) {
					for (i = 0; i < momentProperties.length; i++) {
							prop = momentProperties[i];
							val = from[prop];
							if (!isUndefined(val)) {
									to[prop] = val;
							}
					}
			}

			return to;
	}

	var updateInProgress = false;

	// Moment prototype object
	function Moment(config) {
			copyConfig(this, config);
			this._d = new Date(config._d != null ? config._d.getTime() : NaN);
			if (!this.isValid()) {
					this._d = new Date(NaN);
			}
			// Prevent infinite loop in case updateOffset creates new moment
			// objects.
			if (updateInProgress === false) {
					updateInProgress = true;
					hooks.updateOffset(this);
					updateInProgress = false;
			}
	}

	function isMoment (obj) {
			return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
	}

	function absFloor (number) {
			if (number < 0) {
					// -0 -> 0
					return Math.ceil(number) || 0;
			} else {
					return Math.floor(number);
			}
	}

	function toInt(argumentForCoercion) {
			var coercedNumber = +argumentForCoercion,
					value = 0;

			if (coercedNumber !== 0 && isFinite(coercedNumber)) {
					value = absFloor(coercedNumber);
			}

			return value;
	}

	// compare two arrays, return the number of differences
	function compareArrays(array1, array2, dontConvert) {
			var len = Math.min(array1.length, array2.length),
					lengthDiff = Math.abs(array1.length - array2.length),
					diffs = 0,
					i;
			for (i = 0; i < len; i++) {
					if ((dontConvert && array1[i] !== array2[i]) ||
							(!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
							diffs++;
					}
			}
			return diffs + lengthDiff;
	}

	function warn(msg) {
			if (hooks.suppressDeprecationWarnings === false &&
							(typeof console !==  'undefined') && console.warn) {
					console.warn('Deprecation warning: ' + msg);
			}
	}

	function deprecate(msg, fn) {
			var firstTime = true;

			return extend(function () {
					if (hooks.deprecationHandler != null) {
							hooks.deprecationHandler(null, msg);
					}
					if (firstTime) {
							var args = [];
							var arg;
							for (var i = 0; i < arguments.length; i++) {
									arg = '';
									if (typeof arguments[i] === 'object') {
											arg += '\n[' + i + '] ';
											for (var key in arguments[0]) {
													arg += key + ': ' + arguments[0][key] + ', ';
											}
											arg = arg.slice(0, -2); // Remove trailing comma and space
									} else {
											arg = arguments[i];
									}
									args.push(arg);
							}
							warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
							firstTime = false;
					}
					return fn.apply(this, arguments);
			}, fn);
	}

	var deprecations = {};

	function deprecateSimple(name, msg) {
			if (hooks.deprecationHandler != null) {
					hooks.deprecationHandler(name, msg);
			}
			if (!deprecations[name]) {
					warn(msg);
					deprecations[name] = true;
			}
	}

	hooks.suppressDeprecationWarnings = false;
	hooks.deprecationHandler = null;

	function isFunction(input) {
			return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
	}

	function set (config) {
			var prop, i;
			for (i in config) {
					prop = config[i];
					if (isFunction(prop)) {
							this[i] = prop;
					} else {
							this['_' + i] = prop;
					}
			}
			this._config = config;
			// Lenient ordinal parsing accepts just a number in addition to
			// number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
			// TODO: Remove "ordinalParse" fallback in next major release.
			this._dayOfMonthOrdinalParseLenient = new RegExp(
					(this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
							'|' + (/\d{1,2}/).source);
	}

	function mergeConfigs(parentConfig, childConfig) {
			var res = extend({}, parentConfig), prop;
			for (prop in childConfig) {
					if (hasOwnProp(childConfig, prop)) {
							if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
									res[prop] = {};
									extend(res[prop], parentConfig[prop]);
									extend(res[prop], childConfig[prop]);
							} else if (childConfig[prop] != null) {
									res[prop] = childConfig[prop];
							} else {
									delete res[prop];
							}
					}
			}
			for (prop in parentConfig) {
					if (hasOwnProp(parentConfig, prop) &&
									!hasOwnProp(childConfig, prop) &&
									isObject(parentConfig[prop])) {
							// make sure changes to properties don't modify parent config
							res[prop] = extend({}, res[prop]);
					}
			}
			return res;
	}

	function Locale(config) {
			if (config != null) {
					this.set(config);
			}
	}

	var keys;

	if (Object.keys) {
			keys = Object.keys;
	} else {
			keys = function (obj) {
					var i, res = [];
					for (i in obj) {
							if (hasOwnProp(obj, i)) {
									res.push(i);
							}
					}
					return res;
			};
	}

	var defaultCalendar = {
			sameDay : '[Today at] LT',
			nextDay : '[Tomorrow at] LT',
			nextWeek : 'dddd [at] LT',
			lastDay : '[Yesterday at] LT',
			lastWeek : '[Last] dddd [at] LT',
			sameElse : 'L'
	};

	function calendar (key, mom, now) {
			var output = this._calendar[key] || this._calendar['sameElse'];
			return isFunction(output) ? output.call(mom, now) : output;
	}

	var defaultLongDateFormat = {
			LTS  : 'h:mm:ss A',
			LT   : 'h:mm A',
			L    : 'MM/DD/YYYY',
			LL   : 'MMMM D, YYYY',
			LLL  : 'MMMM D, YYYY h:mm A',
			LLLL : 'dddd, MMMM D, YYYY h:mm A'
	};

	function longDateFormat (key) {
			var format = this._longDateFormat[key],
					formatUpper = this._longDateFormat[key.toUpperCase()];

			if (format || !formatUpper) {
					return format;
			}

			this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
					return val.slice(1);
			});

			return this._longDateFormat[key];
	}

	var defaultInvalidDate = 'Invalid date';

	function invalidDate () {
			return this._invalidDate;
	}

	var defaultOrdinal = '%d';
	var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

	function ordinal (number) {
			return this._ordinal.replace('%d', number);
	}

	var defaultRelativeTime = {
			future : 'in %s',
			past   : '%s ago',
			s  : 'a few seconds',
			ss : '%d seconds',
			m  : 'a minute',
			mm : '%d minutes',
			h  : 'an hour',
			hh : '%d hours',
			d  : 'a day',
			dd : '%d days',
			M  : 'a month',
			MM : '%d months',
			y  : 'a year',
			yy : '%d years'
	};

	function relativeTime (number, withoutSuffix, string, isFuture) {
			var output = this._relativeTime[string];
			return (isFunction(output)) ?
					output(number, withoutSuffix, string, isFuture) :
					output.replace(/%d/i, number);
	}

	function pastFuture (diff, output) {
			var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
			return isFunction(format) ? format(output) : format.replace(/%s/i, output);
	}

	var aliases = {};

	function addUnitAlias (unit, shorthand) {
			var lowerCase = unit.toLowerCase();
			aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
	}

	function normalizeUnits(units) {
			return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
	}

	function normalizeObjectUnits(inputObject) {
			var normalizedInput = {},
					normalizedProp,
					prop;

			for (prop in inputObject) {
					if (hasOwnProp(inputObject, prop)) {
							normalizedProp = normalizeUnits(prop);
							if (normalizedProp) {
									normalizedInput[normalizedProp] = inputObject[prop];
							}
					}
			}

			return normalizedInput;
	}

	var priorities = {};

	function addUnitPriority(unit, priority) {
			priorities[unit] = priority;
	}

	function getPrioritizedUnits(unitsObj) {
			var units = [];
			for (var u in unitsObj) {
					units.push({unit: u, priority: priorities[u]});
			}
			units.sort(function (a, b) {
					return a.priority - b.priority;
			});
			return units;
	}

	function zeroFill(number, targetLength, forceSign) {
			var absNumber = '' + Math.abs(number),
					zerosToFill = targetLength - absNumber.length,
					sign = number >= 0;
			return (sign ? (forceSign ? '+' : '') : '-') +
					Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
	}

	var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

	var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

	var formatFunctions = {};

	var formatTokenFunctions = {};

	// token:    'M'
	// padded:   ['MM', 2]
	// ordinal:  'Mo'
	// callback: function () { this.month() + 1 }
	function addFormatToken (token, padded, ordinal, callback) {
			var func = callback;
			if (typeof callback === 'string') {
					func = function () {
							return this[callback]();
					};
			}
			if (token) {
					formatTokenFunctions[token] = func;
			}
			if (padded) {
					formatTokenFunctions[padded[0]] = function () {
							return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
					};
			}
			if (ordinal) {
					formatTokenFunctions[ordinal] = function () {
							return this.localeData().ordinal(func.apply(this, arguments), token);
					};
			}
	}

	function removeFormattingTokens(input) {
			if (input.match(/\[[\s\S]/)) {
					return input.replace(/^\[|\]$/g, '');
			}
			return input.replace(/\\/g, '');
	}

	function makeFormatFunction(format) {
			var array = format.match(formattingTokens), i, length;

			for (i = 0, length = array.length; i < length; i++) {
					if (formatTokenFunctions[array[i]]) {
							array[i] = formatTokenFunctions[array[i]];
					} else {
							array[i] = removeFormattingTokens(array[i]);
					}
			}

			return function (mom) {
					var output = '', i;
					for (i = 0; i < length; i++) {
							output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
					}
					return output;
			};
	}

	// format date using native date object
	function formatMoment(m, format) {
			if (!m.isValid()) {
					return m.localeData().invalidDate();
			}

			format = expandFormat(format, m.localeData());
			formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

			return formatFunctions[format](m);
	}

	function expandFormat(format, locale) {
			var i = 5;

			function replaceLongDateFormatTokens(input) {
					return locale.longDateFormat(input) || input;
			}

			localFormattingTokens.lastIndex = 0;
			while (i >= 0 && localFormattingTokens.test(format)) {
					format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
					localFormattingTokens.lastIndex = 0;
					i -= 1;
			}

			return format;
	}

	var match1         = /\d/;            //       0 - 9
	var match2         = /\d\d/;          //      00 - 99
	var match3         = /\d{3}/;         //     000 - 999
	var match4         = /\d{4}/;         //    0000 - 9999
	var match6         = /[+-]?\d{6}/;    // -999999 - 999999
	var match1to2      = /\d\d?/;         //       0 - 99
	var match3to4      = /\d\d\d\d?/;     //     999 - 9999
	var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
	var match1to3      = /\d{1,3}/;       //       0 - 999
	var match1to4      = /\d{1,4}/;       //       0 - 9999
	var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

	var matchUnsigned  = /\d+/;           //       0 - inf
	var matchSigned    = /[+-]?\d+/;      //    -inf - inf

	var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
	var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

	var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

	// any word (or two) characters or numbers including two/three word month in arabic.
	// includes scottish gaelic two word and hyphenated months
	var matchWord = /[0-9]{0,256}['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFF07\uFF10-\uFFEF]{1,256}|[\u0600-\u06FF\/]{1,256}(\s*?[\u0600-\u06FF]{1,256}){1,2}/i;

	var regexes = {};

	function addRegexToken (token, regex, strictRegex) {
			regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
					return (isStrict && strictRegex) ? strictRegex : regex;
			};
	}

	function getParseRegexForToken (token, config) {
			if (!hasOwnProp(regexes, token)) {
					return new RegExp(unescapeFormat(token));
			}

			return regexes[token](config._strict, config._locale);
	}

	// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
	function unescapeFormat(s) {
			return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
					return p1 || p2 || p3 || p4;
			}));
	}

	function regexEscape(s) {
			return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
	}

	var tokens = {};

	function addParseToken (token, callback) {
			var i, func = callback;
			if (typeof token === 'string') {
					token = [token];
			}
			if (isNumber(callback)) {
					func = function (input, array) {
							array[callback] = toInt(input);
					};
			}
			for (i = 0; i < token.length; i++) {
					tokens[token[i]] = func;
			}
	}

	function addWeekParseToken (token, callback) {
			addParseToken(token, function (input, array, config, token) {
					config._w = config._w || {};
					callback(input, config._w, config, token);
			});
	}

	function addTimeToArrayFromToken(token, input, config) {
			if (input != null && hasOwnProp(tokens, token)) {
					tokens[token](input, config._a, config, token);
			}
	}

	var YEAR = 0;
	var MONTH = 1;
	var DATE = 2;
	var HOUR = 3;
	var MINUTE = 4;
	var SECOND = 5;
	var MILLISECOND = 6;
	var WEEK = 7;
	var WEEKDAY = 8;

	// FORMATTING

	addFormatToken('Y', 0, 0, function () {
			var y = this.year();
			return y <= 9999 ? '' + y : '+' + y;
	});

	addFormatToken(0, ['YY', 2], 0, function () {
			return this.year() % 100;
	});

	addFormatToken(0, ['YYYY',   4],       0, 'year');
	addFormatToken(0, ['YYYYY',  5],       0, 'year');
	addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

	// ALIASES

	addUnitAlias('year', 'y');

	// PRIORITIES

	addUnitPriority('year', 1);

	// PARSING

	addRegexToken('Y',      matchSigned);
	addRegexToken('YY',     match1to2, match2);
	addRegexToken('YYYY',   match1to4, match4);
	addRegexToken('YYYYY',  match1to6, match6);
	addRegexToken('YYYYYY', match1to6, match6);

	addParseToken(['YYYYY', 'YYYYYY'], YEAR);
	addParseToken('YYYY', function (input, array) {
			array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
	});
	addParseToken('YY', function (input, array) {
			array[YEAR] = hooks.parseTwoDigitYear(input);
	});
	addParseToken('Y', function (input, array) {
			array[YEAR] = parseInt(input, 10);
	});

	// HELPERS

	function daysInYear(year) {
			return isLeapYear(year) ? 366 : 365;
	}

	function isLeapYear(year) {
			return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
	}

	// HOOKS

	hooks.parseTwoDigitYear = function (input) {
			return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
	};

	// MOMENTS

	var getSetYear = makeGetSet('FullYear', true);

	function getIsLeapYear () {
			return isLeapYear(this.year());
	}

	function makeGetSet (unit, keepTime) {
			return function (value) {
					if (value != null) {
							set$1(this, unit, value);
							hooks.updateOffset(this, keepTime);
							return this;
					} else {
							return get(this, unit);
					}
			};
	}

	function get (mom, unit) {
			return mom.isValid() ?
					mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
	}

	function set$1 (mom, unit, value) {
			if (mom.isValid() && !isNaN(value)) {
					if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
							mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
					}
					else {
							mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
					}
			}
	}

	// MOMENTS

	function stringGet (units) {
			units = normalizeUnits(units);
			if (isFunction(this[units])) {
					return this[units]();
			}
			return this;
	}


	function stringSet (units, value) {
			if (typeof units === 'object') {
					units = normalizeObjectUnits(units);
					var prioritized = getPrioritizedUnits(units);
					for (var i = 0; i < prioritized.length; i++) {
							this[prioritized[i].unit](units[prioritized[i].unit]);
					}
			} else {
					units = normalizeUnits(units);
					if (isFunction(this[units])) {
							return this[units](value);
					}
			}
			return this;
	}

	function mod(n, x) {
			return ((n % x) + x) % x;
	}

	var indexOf;

	if (Array.prototype.indexOf) {
			indexOf = Array.prototype.indexOf;
	} else {
			indexOf = function (o) {
					// I know
					var i;
					for (i = 0; i < this.length; ++i) {
							if (this[i] === o) {
									return i;
							}
					}
					return -1;
			};
	}

	function daysInMonth(year, month) {
			if (isNaN(year) || isNaN(month)) {
					return NaN;
			}
			var modMonth = mod(month, 12);
			year += (month - modMonth) / 12;
			return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
	}

	// FORMATTING

	addFormatToken('M', ['MM', 2], 'Mo', function () {
			return this.month() + 1;
	});

	addFormatToken('MMM', 0, 0, function (format) {
			return this.localeData().monthsShort(this, format);
	});

	addFormatToken('MMMM', 0, 0, function (format) {
			return this.localeData().months(this, format);
	});

	// ALIASES

	addUnitAlias('month', 'M');

	// PRIORITY

	addUnitPriority('month', 8);

	// PARSING

	addRegexToken('M',    match1to2);
	addRegexToken('MM',   match1to2, match2);
	addRegexToken('MMM',  function (isStrict, locale) {
			return locale.monthsShortRegex(isStrict);
	});
	addRegexToken('MMMM', function (isStrict, locale) {
			return locale.monthsRegex(isStrict);
	});

	addParseToken(['M', 'MM'], function (input, array) {
			array[MONTH] = toInt(input) - 1;
	});

	addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
			var month = config._locale.monthsParse(input, token, config._strict);
			// if we didn't find a month name, mark the date as invalid.
			if (month != null) {
					array[MONTH] = month;
			} else {
					getParsingFlags(config).invalidMonth = input;
			}
	});

	// LOCALES

	var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
	var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
	function localeMonths (m, format) {
			if (!m) {
					return isArray(this._months) ? this._months :
							this._months['standalone'];
			}
			return isArray(this._months) ? this._months[m.month()] :
					this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
	}

	var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
	function localeMonthsShort (m, format) {
			if (!m) {
					return isArray(this._monthsShort) ? this._monthsShort :
							this._monthsShort['standalone'];
			}
			return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
					this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
	}

	function handleStrictParse(monthName, format, strict) {
			var i, ii, mom, llc = monthName.toLocaleLowerCase();
			if (!this._monthsParse) {
					// this is not used
					this._monthsParse = [];
					this._longMonthsParse = [];
					this._shortMonthsParse = [];
					for (i = 0; i < 12; ++i) {
							mom = createUTC([2000, i]);
							this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
							this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
					}
			}

			if (strict) {
					if (format === 'MMM') {
							ii = indexOf.call(this._shortMonthsParse, llc);
							return ii !== -1 ? ii : null;
					} else {
							ii = indexOf.call(this._longMonthsParse, llc);
							return ii !== -1 ? ii : null;
					}
			} else {
					if (format === 'MMM') {
							ii = indexOf.call(this._shortMonthsParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._longMonthsParse, llc);
							return ii !== -1 ? ii : null;
					} else {
							ii = indexOf.call(this._longMonthsParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._shortMonthsParse, llc);
							return ii !== -1 ? ii : null;
					}
			}
	}

	function localeMonthsParse (monthName, format, strict) {
			var i, mom, regex;

			if (this._monthsParseExact) {
					return handleStrictParse.call(this, monthName, format, strict);
			}

			if (!this._monthsParse) {
					this._monthsParse = [];
					this._longMonthsParse = [];
					this._shortMonthsParse = [];
			}

			// TODO: add sorting
			// Sorting makes sure if one month (or abbr) is a prefix of another
			// see sorting in computeMonthsParse
			for (i = 0; i < 12; i++) {
					// make the regex if we don't have it already
					mom = createUTC([2000, i]);
					if (strict && !this._longMonthsParse[i]) {
							this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
							this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
					}
					if (!strict && !this._monthsParse[i]) {
							regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
							this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
					}
					// test the regex
					if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
							return i;
					} else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
							return i;
					} else if (!strict && this._monthsParse[i].test(monthName)) {
							return i;
					}
			}
	}

	// MOMENTS

	function setMonth (mom, value) {
			var dayOfMonth;

			if (!mom.isValid()) {
					// No op
					return mom;
			}

			if (typeof value === 'string') {
					if (/^\d+$/.test(value)) {
							value = toInt(value);
					} else {
							value = mom.localeData().monthsParse(value);
							// TODO: Another silent failure?
							if (!isNumber(value)) {
									return mom;
							}
					}
			}

			dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
			mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
			return mom;
	}

	function getSetMonth (value) {
			if (value != null) {
					setMonth(this, value);
					hooks.updateOffset(this, true);
					return this;
			} else {
					return get(this, 'Month');
			}
	}

	function getDaysInMonth () {
			return daysInMonth(this.year(), this.month());
	}

	var defaultMonthsShortRegex = matchWord;
	function monthsShortRegex (isStrict) {
			if (this._monthsParseExact) {
					if (!hasOwnProp(this, '_monthsRegex')) {
							computeMonthsParse.call(this);
					}
					if (isStrict) {
							return this._monthsShortStrictRegex;
					} else {
							return this._monthsShortRegex;
					}
			} else {
					if (!hasOwnProp(this, '_monthsShortRegex')) {
							this._monthsShortRegex = defaultMonthsShortRegex;
					}
					return this._monthsShortStrictRegex && isStrict ?
							this._monthsShortStrictRegex : this._monthsShortRegex;
			}
	}

	var defaultMonthsRegex = matchWord;
	function monthsRegex (isStrict) {
			if (this._monthsParseExact) {
					if (!hasOwnProp(this, '_monthsRegex')) {
							computeMonthsParse.call(this);
					}
					if (isStrict) {
							return this._monthsStrictRegex;
					} else {
							return this._monthsRegex;
					}
			} else {
					if (!hasOwnProp(this, '_monthsRegex')) {
							this._monthsRegex = defaultMonthsRegex;
					}
					return this._monthsStrictRegex && isStrict ?
							this._monthsStrictRegex : this._monthsRegex;
			}
	}

	function computeMonthsParse () {
			function cmpLenRev(a, b) {
					return b.length - a.length;
			}

			var shortPieces = [], longPieces = [], mixedPieces = [],
					i, mom;
			for (i = 0; i < 12; i++) {
					// make the regex if we don't have it already
					mom = createUTC([2000, i]);
					shortPieces.push(this.monthsShort(mom, ''));
					longPieces.push(this.months(mom, ''));
					mixedPieces.push(this.months(mom, ''));
					mixedPieces.push(this.monthsShort(mom, ''));
			}
			// Sorting makes sure if one month (or abbr) is a prefix of another it
			// will match the longer piece.
			shortPieces.sort(cmpLenRev);
			longPieces.sort(cmpLenRev);
			mixedPieces.sort(cmpLenRev);
			for (i = 0; i < 12; i++) {
					shortPieces[i] = regexEscape(shortPieces[i]);
					longPieces[i] = regexEscape(longPieces[i]);
			}
			for (i = 0; i < 24; i++) {
					mixedPieces[i] = regexEscape(mixedPieces[i]);
			}

			this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
			this._monthsShortRegex = this._monthsRegex;
			this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
			this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
	}

	function createDate (y, m, d, h, M, s, ms) {
			// can't just apply() to create a date:
			// https://stackoverflow.com/q/181348
			var date;
			// the date constructor remaps years 0-99 to 1900-1999
			if (y < 100 && y >= 0) {
					// preserve leap years using a full 400 year cycle, then reset
					date = new Date(y + 400, m, d, h, M, s, ms);
					if (isFinite(date.getFullYear())) {
							date.setFullYear(y);
					}
			} else {
					date = new Date(y, m, d, h, M, s, ms);
			}

			return date;
	}

	function createUTCDate (y) {
			var date;
			// the Date.UTC function remaps years 0-99 to 1900-1999
			if (y < 100 && y >= 0) {
					var args = Array.prototype.slice.call(arguments);
					// preserve leap years using a full 400 year cycle, then reset
					args[0] = y + 400;
					date = new Date(Date.UTC.apply(null, args));
					if (isFinite(date.getUTCFullYear())) {
							date.setUTCFullYear(y);
					}
			} else {
					date = new Date(Date.UTC.apply(null, arguments));
			}

			return date;
	}

	// start-of-first-week - start-of-year
	function firstWeekOffset(year, dow, doy) {
			var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
					fwd = 7 + dow - doy,
					// first-week day local weekday -- which local weekday is fwd
					fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

			return -fwdlw + fwd - 1;
	}

	// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
	function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
			var localWeekday = (7 + weekday - dow) % 7,
					weekOffset = firstWeekOffset(year, dow, doy),
					dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
					resYear, resDayOfYear;

			if (dayOfYear <= 0) {
					resYear = year - 1;
					resDayOfYear = daysInYear(resYear) + dayOfYear;
			} else if (dayOfYear > daysInYear(year)) {
					resYear = year + 1;
					resDayOfYear = dayOfYear - daysInYear(year);
			} else {
					resYear = year;
					resDayOfYear = dayOfYear;
			}

			return {
					year: resYear,
					dayOfYear: resDayOfYear
			};
	}

	function weekOfYear(mom, dow, doy) {
			var weekOffset = firstWeekOffset(mom.year(), dow, doy),
					week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
					resWeek, resYear;

			if (week < 1) {
					resYear = mom.year() - 1;
					resWeek = week + weeksInYear(resYear, dow, doy);
			} else if (week > weeksInYear(mom.year(), dow, doy)) {
					resWeek = week - weeksInYear(mom.year(), dow, doy);
					resYear = mom.year() + 1;
			} else {
					resYear = mom.year();
					resWeek = week;
			}

			return {
					week: resWeek,
					year: resYear
			};
	}

	function weeksInYear(year, dow, doy) {
			var weekOffset = firstWeekOffset(year, dow, doy),
					weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
			return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
	}

	// FORMATTING

	addFormatToken('w', ['ww', 2], 'wo', 'week');
	addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

	// ALIASES

	addUnitAlias('week', 'w');
	addUnitAlias('isoWeek', 'W');

	// PRIORITIES

	addUnitPriority('week', 5);
	addUnitPriority('isoWeek', 5);

	// PARSING

	addRegexToken('w',  match1to2);
	addRegexToken('ww', match1to2, match2);
	addRegexToken('W',  match1to2);
	addRegexToken('WW', match1to2, match2);

	addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
			week[token.substr(0, 1)] = toInt(input);
	});

	// HELPERS

	// LOCALES

	function localeWeek (mom) {
			return weekOfYear(mom, this._week.dow, this._week.doy).week;
	}

	var defaultLocaleWeek = {
			dow : 0, // Sunday is the first day of the week.
			doy : 6  // The week that contains Jan 6th is the first week of the year.
	};

	function localeFirstDayOfWeek () {
			return this._week.dow;
	}

	function localeFirstDayOfYear () {
			return this._week.doy;
	}

	// MOMENTS

	function getSetWeek (input) {
			var week = this.localeData().week(this);
			return input == null ? week : this.add((input - week) * 7, 'd');
	}

	function getSetISOWeek (input) {
			var week = weekOfYear(this, 1, 4).week;
			return input == null ? week : this.add((input - week) * 7, 'd');
	}

	// FORMATTING

	addFormatToken('d', 0, 'do', 'day');

	addFormatToken('dd', 0, 0, function (format) {
			return this.localeData().weekdaysMin(this, format);
	});

	addFormatToken('ddd', 0, 0, function (format) {
			return this.localeData().weekdaysShort(this, format);
	});

	addFormatToken('dddd', 0, 0, function (format) {
			return this.localeData().weekdays(this, format);
	});

	addFormatToken('e', 0, 0, 'weekday');
	addFormatToken('E', 0, 0, 'isoWeekday');

	// ALIASES

	addUnitAlias('day', 'd');
	addUnitAlias('weekday', 'e');
	addUnitAlias('isoWeekday', 'E');

	// PRIORITY
	addUnitPriority('day', 11);
	addUnitPriority('weekday', 11);
	addUnitPriority('isoWeekday', 11);

	// PARSING

	addRegexToken('d',    match1to2);
	addRegexToken('e',    match1to2);
	addRegexToken('E',    match1to2);
	addRegexToken('dd',   function (isStrict, locale) {
			return locale.weekdaysMinRegex(isStrict);
	});
	addRegexToken('ddd',   function (isStrict, locale) {
			return locale.weekdaysShortRegex(isStrict);
	});
	addRegexToken('dddd',   function (isStrict, locale) {
			return locale.weekdaysRegex(isStrict);
	});

	addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
			var weekday = config._locale.weekdaysParse(input, token, config._strict);
			// if we didn't get a weekday name, mark the date as invalid
			if (weekday != null) {
					week.d = weekday;
			} else {
					getParsingFlags(config).invalidWeekday = input;
			}
	});

	addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
			week[token] = toInt(input);
	});

	// HELPERS

	function parseWeekday(input, locale) {
			if (typeof input !== 'string') {
					return input;
			}

			if (!isNaN(input)) {
					return parseInt(input, 10);
			}

			input = locale.weekdaysParse(input);
			if (typeof input === 'number') {
					return input;
			}

			return null;
	}

	function parseIsoWeekday(input, locale) {
			if (typeof input === 'string') {
					return locale.weekdaysParse(input) % 7 || 7;
			}
			return isNaN(input) ? null : input;
	}

	// LOCALES
	function shiftWeekdays (ws, n) {
			return ws.slice(n, 7).concat(ws.slice(0, n));
	}

	var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
	function localeWeekdays (m, format) {
			var weekdays = isArray(this._weekdays) ? this._weekdays :
					this._weekdays[(m && m !== true && this._weekdays.isFormat.test(format)) ? 'format' : 'standalone'];
			return (m === true) ? shiftWeekdays(weekdays, this._week.dow)
					: (m) ? weekdays[m.day()] : weekdays;
	}

	var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
	function localeWeekdaysShort (m) {
			return (m === true) ? shiftWeekdays(this._weekdaysShort, this._week.dow)
					: (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
	}

	var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
	function localeWeekdaysMin (m) {
			return (m === true) ? shiftWeekdays(this._weekdaysMin, this._week.dow)
					: (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
	}

	function handleStrictParse$1(weekdayName, format, strict) {
			var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
			if (!this._weekdaysParse) {
					this._weekdaysParse = [];
					this._shortWeekdaysParse = [];
					this._minWeekdaysParse = [];

					for (i = 0; i < 7; ++i) {
							mom = createUTC([2000, 1]).day(i);
							this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
							this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
							this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
					}
			}

			if (strict) {
					if (format === 'dddd') {
							ii = indexOf.call(this._weekdaysParse, llc);
							return ii !== -1 ? ii : null;
					} else if (format === 'ddd') {
							ii = indexOf.call(this._shortWeekdaysParse, llc);
							return ii !== -1 ? ii : null;
					} else {
							ii = indexOf.call(this._minWeekdaysParse, llc);
							return ii !== -1 ? ii : null;
					}
			} else {
					if (format === 'dddd') {
							ii = indexOf.call(this._weekdaysParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._shortWeekdaysParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._minWeekdaysParse, llc);
							return ii !== -1 ? ii : null;
					} else if (format === 'ddd') {
							ii = indexOf.call(this._shortWeekdaysParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._weekdaysParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._minWeekdaysParse, llc);
							return ii !== -1 ? ii : null;
					} else {
							ii = indexOf.call(this._minWeekdaysParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._weekdaysParse, llc);
							if (ii !== -1) {
									return ii;
							}
							ii = indexOf.call(this._shortWeekdaysParse, llc);
							return ii !== -1 ? ii : null;
					}
			}
	}

	function localeWeekdaysParse (weekdayName, format, strict) {
			var i, mom, regex;

			if (this._weekdaysParseExact) {
					return handleStrictParse$1.call(this, weekdayName, format, strict);
			}

			if (!this._weekdaysParse) {
					this._weekdaysParse = [];
					this._minWeekdaysParse = [];
					this._shortWeekdaysParse = [];
					this._fullWeekdaysParse = [];
			}

			for (i = 0; i < 7; i++) {
					// make the regex if we don't have it already

					mom = createUTC([2000, 1]).day(i);
					if (strict && !this._fullWeekdaysParse[i]) {
							this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\\.?') + '$', 'i');
							this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\\.?') + '$', 'i');
							this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\\.?') + '$', 'i');
					}
					if (!this._weekdaysParse[i]) {
							regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
							this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
					}
					// test the regex
					if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
							return i;
					} else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
							return i;
					} else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
							return i;
					} else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
							return i;
					}
			}
	}

	// MOMENTS

	function getSetDayOfWeek (input) {
			if (!this.isValid()) {
					return input != null ? this : NaN;
			}
			var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
			if (input != null) {
					input = parseWeekday(input, this.localeData());
					return this.add(input - day, 'd');
			} else {
					return day;
			}
	}

	function getSetLocaleDayOfWeek (input) {
			if (!this.isValid()) {
					return input != null ? this : NaN;
			}
			var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
			return input == null ? weekday : this.add(input - weekday, 'd');
	}

	function getSetISODayOfWeek (input) {
			if (!this.isValid()) {
					return input != null ? this : NaN;
			}

			// behaves the same as moment#day except
			// as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
			// as a setter, sunday should belong to the previous week.

			if (input != null) {
					var weekday = parseIsoWeekday(input, this.localeData());
					return this.day(this.day() % 7 ? weekday : weekday - 7);
			} else {
					return this.day() || 7;
			}
	}

	var defaultWeekdaysRegex = matchWord;
	function weekdaysRegex (isStrict) {
			if (this._weekdaysParseExact) {
					if (!hasOwnProp(this, '_weekdaysRegex')) {
							computeWeekdaysParse.call(this);
					}
					if (isStrict) {
							return this._weekdaysStrictRegex;
					} else {
							return this._weekdaysRegex;
					}
			} else {
					if (!hasOwnProp(this, '_weekdaysRegex')) {
							this._weekdaysRegex = defaultWeekdaysRegex;
					}
					return this._weekdaysStrictRegex && isStrict ?
							this._weekdaysStrictRegex : this._weekdaysRegex;
			}
	}

	var defaultWeekdaysShortRegex = matchWord;
	function weekdaysShortRegex (isStrict) {
			if (this._weekdaysParseExact) {
					if (!hasOwnProp(this, '_weekdaysRegex')) {
							computeWeekdaysParse.call(this);
					}
					if (isStrict) {
							return this._weekdaysShortStrictRegex;
					} else {
							return this._weekdaysShortRegex;
					}
			} else {
					if (!hasOwnProp(this, '_weekdaysShortRegex')) {
							this._weekdaysShortRegex = defaultWeekdaysShortRegex;
					}
					return this._weekdaysShortStrictRegex && isStrict ?
							this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
			}
	}

	var defaultWeekdaysMinRegex = matchWord;
	function weekdaysMinRegex (isStrict) {
			if (this._weekdaysParseExact) {
					if (!hasOwnProp(this, '_weekdaysRegex')) {
							computeWeekdaysParse.call(this);
					}
					if (isStrict) {
							return this._weekdaysMinStrictRegex;
					} else {
							return this._weekdaysMinRegex;
					}
			} else {
					if (!hasOwnProp(this, '_weekdaysMinRegex')) {
							this._weekdaysMinRegex = defaultWeekdaysMinRegex;
					}
					return this._weekdaysMinStrictRegex && isStrict ?
							this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
			}
	}


	function computeWeekdaysParse () {
			function cmpLenRev(a, b) {
					return b.length - a.length;
			}

			var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
					i, mom, minp, shortp, longp;
			for (i = 0; i < 7; i++) {
					// make the regex if we don't have it already
					mom = createUTC([2000, 1]).day(i);
					minp = this.weekdaysMin(mom, '');
					shortp = this.weekdaysShort(mom, '');
					longp = this.weekdays(mom, '');
					minPieces.push(minp);
					shortPieces.push(shortp);
					longPieces.push(longp);
					mixedPieces.push(minp);
					mixedPieces.push(shortp);
					mixedPieces.push(longp);
			}
			// Sorting makes sure if one weekday (or abbr) is a prefix of another it
			// will match the longer piece.
			minPieces.sort(cmpLenRev);
			shortPieces.sort(cmpLenRev);
			longPieces.sort(cmpLenRev);
			mixedPieces.sort(cmpLenRev);
			for (i = 0; i < 7; i++) {
					shortPieces[i] = regexEscape(shortPieces[i]);
					longPieces[i] = regexEscape(longPieces[i]);
					mixedPieces[i] = regexEscape(mixedPieces[i]);
			}

			this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
			this._weekdaysShortRegex = this._weekdaysRegex;
			this._weekdaysMinRegex = this._weekdaysRegex;

			this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
			this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
			this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
	}

	// FORMATTING

	function hFormat() {
			return this.hours() % 12 || 12;
	}

	function kFormat() {
			return this.hours() || 24;
	}

	addFormatToken('H', ['HH', 2], 0, 'hour');
	addFormatToken('h', ['hh', 2], 0, hFormat);
	addFormatToken('k', ['kk', 2], 0, kFormat);

	addFormatToken('hmm', 0, 0, function () {
			return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
	});

	addFormatToken('hmmss', 0, 0, function () {
			return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
					zeroFill(this.seconds(), 2);
	});

	addFormatToken('Hmm', 0, 0, function () {
			return '' + this.hours() + zeroFill(this.minutes(), 2);
	});

	addFormatToken('Hmmss', 0, 0, function () {
			return '' + this.hours() + zeroFill(this.minutes(), 2) +
					zeroFill(this.seconds(), 2);
	});

	function meridiem (token, lowercase) {
			addFormatToken(token, 0, 0, function () {
					return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
			});
	}

	meridiem('a', true);
	meridiem('A', false);

	// ALIASES

	addUnitAlias('hour', 'h');

	// PRIORITY
	addUnitPriority('hour', 13);

	// PARSING

	function matchMeridiem (isStrict, locale) {
			return locale._meridiemParse;
	}

	addRegexToken('a',  matchMeridiem);
	addRegexToken('A',  matchMeridiem);
	addRegexToken('H',  match1to2);
	addRegexToken('h',  match1to2);
	addRegexToken('k',  match1to2);
	addRegexToken('HH', match1to2, match2);
	addRegexToken('hh', match1to2, match2);
	addRegexToken('kk', match1to2, match2);

	addRegexToken('hmm', match3to4);
	addRegexToken('hmmss', match5to6);
	addRegexToken('Hmm', match3to4);
	addRegexToken('Hmmss', match5to6);

	addParseToken(['H', 'HH'], HOUR);
	addParseToken(['k', 'kk'], function (input, array, config) {
			var kInput = toInt(input);
			array[HOUR] = kInput === 24 ? 0 : kInput;
	});
	addParseToken(['a', 'A'], function (input, array, config) {
			config._isPm = config._locale.isPM(input);
			config._meridiem = input;
	});
	addParseToken(['h', 'hh'], function (input, array, config) {
			array[HOUR] = toInt(input);
			getParsingFlags(config).bigHour = true;
	});
	addParseToken('hmm', function (input, array, config) {
			var pos = input.length - 2;
			array[HOUR] = toInt(input.substr(0, pos));
			array[MINUTE] = toInt(input.substr(pos));
			getParsingFlags(config).bigHour = true;
	});
	addParseToken('hmmss', function (input, array, config) {
			var pos1 = input.length - 4;
			var pos2 = input.length - 2;
			array[HOUR] = toInt(input.substr(0, pos1));
			array[MINUTE] = toInt(input.substr(pos1, 2));
			array[SECOND] = toInt(input.substr(pos2));
			getParsingFlags(config).bigHour = true;
	});
	addParseToken('Hmm', function (input, array, config) {
			var pos = input.length - 2;
			array[HOUR] = toInt(input.substr(0, pos));
			array[MINUTE] = toInt(input.substr(pos));
	});
	addParseToken('Hmmss', function (input, array, config) {
			var pos1 = input.length - 4;
			var pos2 = input.length - 2;
			array[HOUR] = toInt(input.substr(0, pos1));
			array[MINUTE] = toInt(input.substr(pos1, 2));
			array[SECOND] = toInt(input.substr(pos2));
	});

	// LOCALES

	function localeIsPM (input) {
			// IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
			// Using charAt should be more compatible.
			return ((input + '').toLowerCase().charAt(0) === 'p');
	}

	var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
	function localeMeridiem (hours, minutes, isLower) {
			if (hours > 11) {
					return isLower ? 'pm' : 'PM';
			} else {
					return isLower ? 'am' : 'AM';
			}
	}


	// MOMENTS

	// Setting the hour should keep the time, because the user explicitly
	// specified which hour they want. So trying to maintain the same hour (in
	// a new timezone) makes sense. Adding/subtracting hours does not follow
	// this rule.
	var getSetHour = makeGetSet('Hours', true);

	var baseConfig = {
			calendar: defaultCalendar,
			longDateFormat: defaultLongDateFormat,
			invalidDate: defaultInvalidDate,
			ordinal: defaultOrdinal,
			dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
			relativeTime: defaultRelativeTime,

			months: defaultLocaleMonths,
			monthsShort: defaultLocaleMonthsShort,

			week: defaultLocaleWeek,

			weekdays: defaultLocaleWeekdays,
			weekdaysMin: defaultLocaleWeekdaysMin,
			weekdaysShort: defaultLocaleWeekdaysShort,

			meridiemParse: defaultLocaleMeridiemParse
	};

	// internal storage for locale config files
	var locales = {};
	var localeFamilies = {};
	var globalLocale;

	function normalizeLocale(key) {
			return key ? key.toLowerCase().replace('_', '-') : key;
	}

	// pick the locale from the array
	// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
	// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
	function chooseLocale(names) {
			var i = 0, j, next, locale, split;

			while (i < names.length) {
					split = normalizeLocale(names[i]).split('-');
					j = split.length;
					next = normalizeLocale(names[i + 1]);
					next = next ? next.split('-') : null;
					while (j > 0) {
							locale = loadLocale(split.slice(0, j).join('-'));
							if (locale) {
									return locale;
							}
							if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
									//the next array item is better than a shallower substring of this one
									break;
							}
							j--;
					}
					i++;
			}
			return globalLocale;
	}

	function loadLocale(name) {
			var oldLocale = null;
			// TODO: Find a better way to register and load all the locales in Node
			if (!locales[name] && (typeof module !== 'undefined') &&
							module && module.exports) {
					try {
							oldLocale = globalLocale._abbr;
							var aliasedRequire = require;
							aliasedRequire('./locale/' + name);
							getSetGlobalLocale(oldLocale);
					} catch (e) {}
			}
			return locales[name];
	}

	// This function will load locale and then set the global locale.  If
	// no arguments are passed in, it will simply return the current global
	// locale key.
	function getSetGlobalLocale (key, values) {
			var data;
			if (key) {
					if (isUndefined(values)) {
							data = getLocale(key);
					}
					else {
							data = defineLocale(key, values);
					}

					if (data) {
							// moment.duration._locale = moment._locale = data;
							globalLocale = data;
					}
					else {
							if ((typeof console !==  'undefined') && console.warn) {
									//warn user if arguments are passed but the locale could not be set
									console.warn('Locale ' + key +  ' not found. Did you forget to load it?');
							}
					}
			}

			return globalLocale._abbr;
	}

	function defineLocale (name, config) {
			if (config !== null) {
					var locale, parentConfig = baseConfig;
					config.abbr = name;
					if (locales[name] != null) {
							deprecateSimple('defineLocaleOverride',
											'use moment.updateLocale(localeName, config) to change ' +
											'an existing locale. moment.defineLocale(localeName, ' +
											'config) should only be used for creating a new locale ' +
											'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
							parentConfig = locales[name]._config;
					} else if (config.parentLocale != null) {
							if (locales[config.parentLocale] != null) {
									parentConfig = locales[config.parentLocale]._config;
							} else {
									locale = loadLocale(config.parentLocale);
									if (locale != null) {
											parentConfig = locale._config;
									} else {
											if (!localeFamilies[config.parentLocale]) {
													localeFamilies[config.parentLocale] = [];
											}
											localeFamilies[config.parentLocale].push({
													name: name,
													config: config
											});
											return null;
									}
							}
					}
					locales[name] = new Locale(mergeConfigs(parentConfig, config));

					if (localeFamilies[name]) {
							localeFamilies[name].forEach(function (x) {
									defineLocale(x.name, x.config);
							});
					}

					// backwards compat for now: also set the locale
					// make sure we set the locale AFTER all child locales have been
					// created, so we won't end up with the child locale set.
					getSetGlobalLocale(name);


					return locales[name];
			} else {
					// useful for testing
					delete locales[name];
					return null;
			}
	}

	function updateLocale(name, config) {
			if (config != null) {
					var locale, tmpLocale, parentConfig = baseConfig;
					// MERGE
					tmpLocale = loadLocale(name);
					if (tmpLocale != null) {
							parentConfig = tmpLocale._config;
					}
					config = mergeConfigs(parentConfig, config);
					locale = new Locale(config);
					locale.parentLocale = locales[name];
					locales[name] = locale;

					// backwards compat for now: also set the locale
					getSetGlobalLocale(name);
			} else {
					// pass null for config to unupdate, useful for tests
					if (locales[name] != null) {
							if (locales[name].parentLocale != null) {
									locales[name] = locales[name].parentLocale;
							} else if (locales[name] != null) {
									delete locales[name];
							}
					}
			}
			return locales[name];
	}

	// returns locale data
	function getLocale (key) {
			var locale;

			if (key && key._locale && key._locale._abbr) {
					key = key._locale._abbr;
			}

			if (!key) {
					return globalLocale;
			}

			if (!isArray(key)) {
					//short-circuit everything else
					locale = loadLocale(key);
					if (locale) {
							return locale;
					}
					key = [key];
			}

			return chooseLocale(key);
	}

	function listLocales() {
			return keys(locales);
	}

	function checkOverflow (m) {
			var overflow;
			var a = m._a;

			if (a && getParsingFlags(m).overflow === -2) {
					overflow =
							a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
							a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
							a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
							a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
							a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
							a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
							-1;

					if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
							overflow = DATE;
					}
					if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
							overflow = WEEK;
					}
					if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
							overflow = WEEKDAY;
					}

					getParsingFlags(m).overflow = overflow;
			}

			return m;
	}

	// Pick the first defined of two or three arguments.
	function defaults(a, b, c) {
			if (a != null) {
					return a;
			}
			if (b != null) {
					return b;
			}
			return c;
	}

	function currentDateArray(config) {
			// hooks is actually the exported moment object
			var nowValue = new Date(hooks.now());
			if (config._useUTC) {
					return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
			}
			return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
	}

	// convert an array to a date.
	// the array should mirror the parameters below
	// note: all values past the year are optional and will default to the lowest possible value.
	// [year, month, day , hour, minute, second, millisecond]
	function configFromArray (config) {
			var i, date, input = [], currentDate, expectedWeekday, yearToUse;

			if (config._d) {
					return;
			}

			currentDate = currentDateArray(config);

			//compute day of the year from weeks and weekdays
			if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
					dayOfYearFromWeekInfo(config);
			}

			//if the day of the year is set, figure out what it is
			if (config._dayOfYear != null) {
					yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

					if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
							getParsingFlags(config)._overflowDayOfYear = true;
					}

					date = createUTCDate(yearToUse, 0, config._dayOfYear);
					config._a[MONTH] = date.getUTCMonth();
					config._a[DATE] = date.getUTCDate();
			}

			// Default to current date.
			// * if no year, month, day of month are given, default to today
			// * if day of month is given, default month and year
			// * if month is given, default only year
			// * if year is given, don't default anything
			for (i = 0; i < 3 && config._a[i] == null; ++i) {
					config._a[i] = input[i] = currentDate[i];
			}

			// Zero out whatever was not defaulted, including time
			for (; i < 7; i++) {
					config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
			}

			// Check for 24:00:00.000
			if (config._a[HOUR] === 24 &&
							config._a[MINUTE] === 0 &&
							config._a[SECOND] === 0 &&
							config._a[MILLISECOND] === 0) {
					config._nextDay = true;
					config._a[HOUR] = 0;
			}

			config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
			expectedWeekday = config._useUTC ? config._d.getUTCDay() : config._d.getDay();

			// Apply timezone offset from input. The actual utcOffset can be changed
			// with parseZone.
			if (config._tzm != null) {
					config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
			}

			if (config._nextDay) {
					config._a[HOUR] = 24;
			}

			// check for mismatching day of week
			if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== expectedWeekday) {
					getParsingFlags(config).weekdayMismatch = true;
			}
	}

	function dayOfYearFromWeekInfo(config) {
			var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

			w = config._w;
			if (w.GG != null || w.W != null || w.E != null) {
					dow = 1;
					doy = 4;

					// TODO: We need to take the current isoWeekYear, but that depends on
					// how we interpret now (local, utc, fixed offset). So create
					// a now version of current config (take local/utc/offset flags, and
					// create now).
					weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
					week = defaults(w.W, 1);
					weekday = defaults(w.E, 1);
					if (weekday < 1 || weekday > 7) {
							weekdayOverflow = true;
					}
			} else {
					dow = config._locale._week.dow;
					doy = config._locale._week.doy;

					var curWeek = weekOfYear(createLocal(), dow, doy);

					weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

					// Default to current week.
					week = defaults(w.w, curWeek.week);

					if (w.d != null) {
							// weekday -- low day numbers are considered next week
							weekday = w.d;
							if (weekday < 0 || weekday > 6) {
									weekdayOverflow = true;
							}
					} else if (w.e != null) {
							// local weekday -- counting starts from beginning of week
							weekday = w.e + dow;
							if (w.e < 0 || w.e > 6) {
									weekdayOverflow = true;
							}
					} else {
							// default to beginning of week
							weekday = dow;
					}
			}
			if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
					getParsingFlags(config)._overflowWeeks = true;
			} else if (weekdayOverflow != null) {
					getParsingFlags(config)._overflowWeekday = true;
			} else {
					temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
					config._a[YEAR] = temp.year;
					config._dayOfYear = temp.dayOfYear;
			}
	}

	// iso 8601 regex
	// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
	var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
	var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

	var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

	var isoDates = [
			['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
			['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
			['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
			['GGGG-[W]WW', /\d{4}-W\d\d/, false],
			['YYYY-DDD', /\d{4}-\d{3}/],
			['YYYY-MM', /\d{4}-\d\d/, false],
			['YYYYYYMMDD', /[+-]\d{10}/],
			['YYYYMMDD', /\d{8}/],
			// YYYYMM is NOT allowed by the standard
			['GGGG[W]WWE', /\d{4}W\d{3}/],
			['GGGG[W]WW', /\d{4}W\d{2}/, false],
			['YYYYDDD', /\d{7}/]
	];

	// iso time formats and regexes
	var isoTimes = [
			['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
			['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
			['HH:mm:ss', /\d\d:\d\d:\d\d/],
			['HH:mm', /\d\d:\d\d/],
			['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
			['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
			['HHmmss', /\d\d\d\d\d\d/],
			['HHmm', /\d\d\d\d/],
			['HH', /\d\d/]
	];

	var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

	// date from iso format
	function configFromISO(config) {
			var i, l,
					string = config._i,
					match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
					allowTime, dateFormat, timeFormat, tzFormat;

			if (match) {
					getParsingFlags(config).iso = true;

					for (i = 0, l = isoDates.length; i < l; i++) {
							if (isoDates[i][1].exec(match[1])) {
									dateFormat = isoDates[i][0];
									allowTime = isoDates[i][2] !== false;
									break;
							}
					}
					if (dateFormat == null) {
							config._isValid = false;
							return;
					}
					if (match[3]) {
							for (i = 0, l = isoTimes.length; i < l; i++) {
									if (isoTimes[i][1].exec(match[3])) {
											// match[2] should be 'T' or space
											timeFormat = (match[2] || ' ') + isoTimes[i][0];
											break;
									}
							}
							if (timeFormat == null) {
									config._isValid = false;
									return;
							}
					}
					if (!allowTime && timeFormat != null) {
							config._isValid = false;
							return;
					}
					if (match[4]) {
							if (tzRegex.exec(match[4])) {
									tzFormat = 'Z';
							} else {
									config._isValid = false;
									return;
							}
					}
					config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
					configFromStringAndFormat(config);
			} else {
					config._isValid = false;
			}
	}

	// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
	var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;

	function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
			var result = [
					untruncateYear(yearStr),
					defaultLocaleMonthsShort.indexOf(monthStr),
					parseInt(dayStr, 10),
					parseInt(hourStr, 10),
					parseInt(minuteStr, 10)
			];

			if (secondStr) {
					result.push(parseInt(secondStr, 10));
			}

			return result;
	}

	function untruncateYear(yearStr) {
			var year = parseInt(yearStr, 10);
			if (year <= 49) {
					return 2000 + year;
			} else if (year <= 999) {
					return 1900 + year;
			}
			return year;
	}

	function preprocessRFC2822(s) {
			// Remove comments and folding whitespace and replace multiple-spaces with a single space
			return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, '');
	}

	function checkWeekday(weekdayStr, parsedInput, config) {
			if (weekdayStr) {
					// TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
					var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
							weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
					if (weekdayProvided !== weekdayActual) {
							getParsingFlags(config).weekdayMismatch = true;
							config._isValid = false;
							return false;
					}
			}
			return true;
	}

	var obsOffsets = {
			UT: 0,
			GMT: 0,
			EDT: -4 * 60,
			EST: -5 * 60,
			CDT: -5 * 60,
			CST: -6 * 60,
			MDT: -6 * 60,
			MST: -7 * 60,
			PDT: -7 * 60,
			PST: -8 * 60
	};

	function calculateOffset(obsOffset, militaryOffset, numOffset) {
			if (obsOffset) {
					return obsOffsets[obsOffset];
			} else if (militaryOffset) {
					// the only allowed military tz is Z
					return 0;
			} else {
					var hm = parseInt(numOffset, 10);
					var m = hm % 100, h = (hm - m) / 100;
					return h * 60 + m;
			}
	}

	// date and time from ref 2822 format
	function configFromRFC2822(config) {
			var match = rfc2822.exec(preprocessRFC2822(config._i));
			if (match) {
					var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
					if (!checkWeekday(match[1], parsedArray, config)) {
							return;
					}

					config._a = parsedArray;
					config._tzm = calculateOffset(match[8], match[9], match[10]);

					config._d = createUTCDate.apply(null, config._a);
					config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);

					getParsingFlags(config).rfc2822 = true;
			} else {
					config._isValid = false;
			}
	}

	// date from iso format or fallback
	function configFromString(config) {
			var matched = aspNetJsonRegex.exec(config._i);

			if (matched !== null) {
					config._d = new Date(+matched[1]);
					return;
			}

			configFromISO(config);
			if (config._isValid === false) {
					delete config._isValid;
			} else {
					return;
			}

			configFromRFC2822(config);
			if (config._isValid === false) {
					delete config._isValid;
			} else {
					return;
			}

			// Final attempt, use Input Fallback
			hooks.createFromInputFallback(config);
	}

	hooks.createFromInputFallback = deprecate(
			'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
			'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
			'discouraged and will be removed in an upcoming major release. Please refer to ' +
			'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
			function (config) {
					config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
			}
	);

	// constant that refers to the ISO standard
	hooks.ISO_8601 = function () {};

	// constant that refers to the RFC 2822 form
	hooks.RFC_2822 = function () {};

	// date from string and format string
	function configFromStringAndFormat(config) {
			// TODO: Move this to another part of the creation flow to prevent circular deps
			if (config._f === hooks.ISO_8601) {
					configFromISO(config);
					return;
			}
			if (config._f === hooks.RFC_2822) {
					configFromRFC2822(config);
					return;
			}
			config._a = [];
			getParsingFlags(config).empty = true;

			// This array is used to make a Date, either with `new Date` or `Date.UTC`
			var string = '' + config._i,
					i, parsedInput, tokens, token, skipped,
					stringLength = string.length,
					totalParsedInputLength = 0;

			tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

			for (i = 0; i < tokens.length; i++) {
					token = tokens[i];
					parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
					// console.log('token', token, 'parsedInput', parsedInput,
					//         'regex', getParseRegexForToken(token, config));
					if (parsedInput) {
							skipped = string.substr(0, string.indexOf(parsedInput));
							if (skipped.length > 0) {
									getParsingFlags(config).unusedInput.push(skipped);
							}
							string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
							totalParsedInputLength += parsedInput.length;
					}
					// don't parse if it's not a known token
					if (formatTokenFunctions[token]) {
							if (parsedInput) {
									getParsingFlags(config).empty = false;
							}
							else {
									getParsingFlags(config).unusedTokens.push(token);
							}
							addTimeToArrayFromToken(token, parsedInput, config);
					}
					else if (config._strict && !parsedInput) {
							getParsingFlags(config).unusedTokens.push(token);
					}
			}

			// add remaining unparsed input length to the string
			getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
			if (string.length > 0) {
					getParsingFlags(config).unusedInput.push(string);
			}

			// clear _12h flag if hour is <= 12
			if (config._a[HOUR] <= 12 &&
					getParsingFlags(config).bigHour === true &&
					config._a[HOUR] > 0) {
					getParsingFlags(config).bigHour = undefined;
			}

			getParsingFlags(config).parsedDateParts = config._a.slice(0);
			getParsingFlags(config).meridiem = config._meridiem;
			// handle meridiem
			config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

			configFromArray(config);
			checkOverflow(config);
	}


	function meridiemFixWrap (locale, hour, meridiem) {
			var isPm;

			if (meridiem == null) {
					// nothing to do
					return hour;
			}
			if (locale.meridiemHour != null) {
					return locale.meridiemHour(hour, meridiem);
			} else if (locale.isPM != null) {
					// Fallback
					isPm = locale.isPM(meridiem);
					if (isPm && hour < 12) {
							hour += 12;
					}
					if (!isPm && hour === 12) {
							hour = 0;
					}
					return hour;
			} else {
					// this is not supposed to happen
					return hour;
			}
	}

	// date from string and array of format strings
	function configFromStringAndArray(config) {
			var tempConfig,
					bestMoment,

					scoreToBeat,
					i,
					currentScore;

			if (config._f.length === 0) {
					getParsingFlags(config).invalidFormat = true;
					config._d = new Date(NaN);
					return;
			}

			for (i = 0; i < config._f.length; i++) {
					currentScore = 0;
					tempConfig = copyConfig({}, config);
					if (config._useUTC != null) {
							tempConfig._useUTC = config._useUTC;
					}
					tempConfig._f = config._f[i];
					configFromStringAndFormat(tempConfig);

					if (!isValid(tempConfig)) {
							continue;
					}

					// if there is any input that was not parsed add a penalty for that format
					currentScore += getParsingFlags(tempConfig).charsLeftOver;

					//or tokens
					currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

					getParsingFlags(tempConfig).score = currentScore;

					if (scoreToBeat == null || currentScore < scoreToBeat) {
							scoreToBeat = currentScore;
							bestMoment = tempConfig;
					}
			}

			extend(config, bestMoment || tempConfig);
	}

	function configFromObject(config) {
			if (config._d) {
					return;
			}

			var i = normalizeObjectUnits(config._i);
			config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
					return obj && parseInt(obj, 10);
			});

			configFromArray(config);
	}

	function createFromConfig (config) {
			var res = new Moment(checkOverflow(prepareConfig(config)));
			if (res._nextDay) {
					// Adding is smart enough around DST
					res.add(1, 'd');
					res._nextDay = undefined;
			}

			return res;
	}

	function prepareConfig (config) {
			var input = config._i,
					format = config._f;

			config._locale = config._locale || getLocale(config._l);

			if (input === null || (format === undefined && input === '')) {
					return createInvalid({nullInput: true});
			}

			if (typeof input === 'string') {
					config._i = input = config._locale.preparse(input);
			}

			if (isMoment(input)) {
					return new Moment(checkOverflow(input));
			} else if (isDate(input)) {
					config._d = input;
			} else if (isArray(format)) {
					configFromStringAndArray(config);
			} else if (format) {
					configFromStringAndFormat(config);
			}  else {
					configFromInput(config);
			}

			if (!isValid(config)) {
					config._d = null;
			}

			return config;
	}

	function configFromInput(config) {
			var input = config._i;
			if (isUndefined(input)) {
					config._d = new Date(hooks.now());
			} else if (isDate(input)) {
					config._d = new Date(input.valueOf());
			} else if (typeof input === 'string') {
					configFromString(config);
			} else if (isArray(input)) {
					config._a = map(input.slice(0), function (obj) {
							return parseInt(obj, 10);
					});
					configFromArray(config);
			} else if (isObject(input)) {
					configFromObject(config);
			} else if (isNumber(input)) {
					// from milliseconds
					config._d = new Date(input);
			} else {
					hooks.createFromInputFallback(config);
			}
	}

	function createLocalOrUTC (input, format, locale, strict, isUTC) {
			var c = {};

			if (locale === true || locale === false) {
					strict = locale;
					locale = undefined;
			}

			if ((isObject(input) && isObjectEmpty(input)) ||
							(isArray(input) && input.length === 0)) {
					input = undefined;
			}
			// object construction must be done this way.
			// https://github.com/moment/moment/issues/1423
			c._isAMomentObject = true;
			c._useUTC = c._isUTC = isUTC;
			c._l = locale;
			c._i = input;
			c._f = format;
			c._strict = strict;

			return createFromConfig(c);
	}

	function createLocal (input, format, locale, strict) {
			return createLocalOrUTC(input, format, locale, strict, false);
	}

	var prototypeMin = deprecate(
			'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
			function () {
					var other = createLocal.apply(null, arguments);
					if (this.isValid() && other.isValid()) {
							return other < this ? this : other;
					} else {
							return createInvalid();
					}
			}
	);

	var prototypeMax = deprecate(
			'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
			function () {
					var other = createLocal.apply(null, arguments);
					if (this.isValid() && other.isValid()) {
							return other > this ? this : other;
					} else {
							return createInvalid();
					}
			}
	);

	// Pick a moment m from moments so that m[fn](other) is true for all
	// other. This relies on the function fn to be transitive.
	//
	// moments should either be an array of moment objects or an array, whose
	// first element is an array of moment objects.
	function pickBy(fn, moments) {
			var res, i;
			if (moments.length === 1 && isArray(moments[0])) {
					moments = moments[0];
			}
			if (!moments.length) {
					return createLocal();
			}
			res = moments[0];
			for (i = 1; i < moments.length; ++i) {
					if (!moments[i].isValid() || moments[i][fn](res)) {
							res = moments[i];
					}
			}
			return res;
	}

	// TODO: Use [].sort instead?
	function min () {
			var args = [].slice.call(arguments, 0);

			return pickBy('isBefore', args);
	}

	function max () {
			var args = [].slice.call(arguments, 0);

			return pickBy('isAfter', args);
	}

	var now = function () {
			return Date.now ? Date.now() : +(new Date());
	};

	var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

	function isDurationValid(m) {
			for (var key in m) {
					if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
							return false;
					}
			}

			var unitHasDecimal = false;
			for (var i = 0; i < ordering.length; ++i) {
					if (m[ordering[i]]) {
							if (unitHasDecimal) {
									return false; // only allow non-integers for smallest unit
							}
							if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
									unitHasDecimal = true;
							}
					}
			}

			return true;
	}

	function isValid$1() {
			return this._isValid;
	}

	function createInvalid$1() {
			return createDuration(NaN);
	}

	function Duration (duration) {
			var normalizedInput = normalizeObjectUnits(duration),
					years = normalizedInput.year || 0,
					quarters = normalizedInput.quarter || 0,
					months = normalizedInput.month || 0,
					weeks = normalizedInput.week || normalizedInput.isoWeek || 0,
					days = normalizedInput.day || 0,
					hours = normalizedInput.hour || 0,
					minutes = normalizedInput.minute || 0,
					seconds = normalizedInput.second || 0,
					milliseconds = normalizedInput.millisecond || 0;

			this._isValid = isDurationValid(normalizedInput);

			// representation for dateAddRemove
			this._milliseconds = +milliseconds +
					seconds * 1e3 + // 1000
					minutes * 6e4 + // 1000 * 60
					hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
			// Because of dateAddRemove treats 24 hours as different from a
			// day when working around DST, we need to store them separately
			this._days = +days +
					weeks * 7;
			// It is impossible to translate months into days without knowing
			// which months you are are talking about, so we have to store
			// it separately.
			this._months = +months +
					quarters * 3 +
					years * 12;

			this._data = {};

			this._locale = getLocale();

			this._bubble();
	}

	function isDuration (obj) {
			return obj instanceof Duration;
	}

	function absRound (number) {
			if (number < 0) {
					return Math.round(-1 * number) * -1;
			} else {
					return Math.round(number);
			}
	}

	// FORMATTING

	function offset (token, separator) {
			addFormatToken(token, 0, 0, function () {
					var offset = this.utcOffset();
					var sign = '+';
					if (offset < 0) {
							offset = -offset;
							sign = '-';
					}
					return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
			});
	}

	offset('Z', ':');
	offset('ZZ', '');

	// PARSING

	addRegexToken('Z',  matchShortOffset);
	addRegexToken('ZZ', matchShortOffset);
	addParseToken(['Z', 'ZZ'], function (input, array, config) {
			config._useUTC = true;
			config._tzm = offsetFromString(matchShortOffset, input);
	});

	// HELPERS

	// timezone chunker
	// '+10:00' > ['10',  '00']
	// '-1530'  > ['-15', '30']
	var chunkOffset = /([\+\-]|\d\d)/gi;

	function offsetFromString(matcher, string) {
			var matches = (string || '').match(matcher);

			if (matches === null) {
					return null;
			}

			var chunk   = matches[matches.length - 1] || [];
			var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
			var minutes = +(parts[1] * 60) + toInt(parts[2]);

			return minutes === 0 ?
				0 :
				parts[0] === '+' ? minutes : -minutes;
	}

	// Return a moment from input, that is local/utc/zone equivalent to model.
	function cloneWithOffset(input, model) {
			var res, diff;
			if (model._isUTC) {
					res = model.clone();
					diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
					// Use low-level api, because this fn is low-level api.
					res._d.setTime(res._d.valueOf() + diff);
					hooks.updateOffset(res, false);
					return res;
			} else {
					return createLocal(input).local();
			}
	}

	function getDateOffset (m) {
			// On Firefox.24 Date#getTimezoneOffset returns a floating point.
			// https://github.com/moment/moment/pull/1871
			return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
	}

	// HOOKS

	// This function will be called whenever a moment is mutated.
	// It is intended to keep the offset in sync with the timezone.
	hooks.updateOffset = function () {};

	// MOMENTS

	// keepLocalTime = true means only change the timezone, without
	// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
	// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
	// +0200, so we adjust the time as needed, to be valid.
	//
	// Keeping the time actually adds/subtracts (one hour)
	// from the actual represented time. That is why we call updateOffset
	// a second time. In case it wants us to change the offset again
	// _changeInProgress == true case, then we have to adjust, because
	// there is no such time in the given timezone.
	function getSetOffset (input, keepLocalTime, keepMinutes) {
			var offset = this._offset || 0,
					localAdjust;
			if (!this.isValid()) {
					return input != null ? this : NaN;
			}
			if (input != null) {
					if (typeof input === 'string') {
							input = offsetFromString(matchShortOffset, input);
							if (input === null) {
									return this;
							}
					} else if (Math.abs(input) < 16 && !keepMinutes) {
							input = input * 60;
					}
					if (!this._isUTC && keepLocalTime) {
							localAdjust = getDateOffset(this);
					}
					this._offset = input;
					this._isUTC = true;
					if (localAdjust != null) {
							this.add(localAdjust, 'm');
					}
					if (offset !== input) {
							if (!keepLocalTime || this._changeInProgress) {
									addSubtract(this, createDuration(input - offset, 'm'), 1, false);
							} else if (!this._changeInProgress) {
									this._changeInProgress = true;
									hooks.updateOffset(this, true);
									this._changeInProgress = null;
							}
					}
					return this;
			} else {
					return this._isUTC ? offset : getDateOffset(this);
			}
	}

	function getSetZone (input, keepLocalTime) {
			if (input != null) {
					if (typeof input !== 'string') {
							input = -input;
					}

					this.utcOffset(input, keepLocalTime);

					return this;
			} else {
					return -this.utcOffset();
			}
	}

	function setOffsetToUTC (keepLocalTime) {
			return this.utcOffset(0, keepLocalTime);
	}

	function setOffsetToLocal (keepLocalTime) {
			if (this._isUTC) {
					this.utcOffset(0, keepLocalTime);
					this._isUTC = false;

					if (keepLocalTime) {
							this.subtract(getDateOffset(this), 'm');
					}
			}
			return this;
	}

	function setOffsetToParsedOffset () {
			if (this._tzm != null) {
					this.utcOffset(this._tzm, false, true);
			} else if (typeof this._i === 'string') {
					var tZone = offsetFromString(matchOffset, this._i);
					if (tZone != null) {
							this.utcOffset(tZone);
					}
					else {
							this.utcOffset(0, true);
					}
			}
			return this;
	}

	function hasAlignedHourOffset (input) {
			if (!this.isValid()) {
					return false;
			}
			input = input ? createLocal(input).utcOffset() : 0;

			return (this.utcOffset() - input) % 60 === 0;
	}

	function isDaylightSavingTime () {
			return (
					this.utcOffset() > this.clone().month(0).utcOffset() ||
					this.utcOffset() > this.clone().month(5).utcOffset()
			);
	}

	function isDaylightSavingTimeShifted () {
			if (!isUndefined(this._isDSTShifted)) {
					return this._isDSTShifted;
			}

			var c = {};

			copyConfig(c, this);
			c = prepareConfig(c);

			if (c._a) {
					var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
					this._isDSTShifted = this.isValid() &&
							compareArrays(c._a, other.toArray()) > 0;
			} else {
					this._isDSTShifted = false;
			}

			return this._isDSTShifted;
	}

	function isLocal () {
			return this.isValid() ? !this._isUTC : false;
	}

	function isUtcOffset () {
			return this.isValid() ? this._isUTC : false;
	}

	function isUtc () {
			return this.isValid() ? this._isUTC && this._offset === 0 : false;
	}

	// ASP.NET json date format regex
	var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

	// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
	// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
	// and further modified to allow for strings containing both week and day
	var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;

	function createDuration (input, key) {
			var duration = input,
					// matching against regexp is expensive, do it on demand
					match = null,
					sign,
					ret,
					diffRes;

			if (isDuration(input)) {
					duration = {
							ms : input._milliseconds,
							d  : input._days,
							M  : input._months
					};
			} else if (isNumber(input)) {
					duration = {};
					if (key) {
							duration[key] = input;
					} else {
							duration.milliseconds = input;
					}
			} else if (!!(match = aspNetRegex.exec(input))) {
					sign = (match[1] === '-') ? -1 : 1;
					duration = {
							y  : 0,
							d  : toInt(match[DATE])                         * sign,
							h  : toInt(match[HOUR])                         * sign,
							m  : toInt(match[MINUTE])                       * sign,
							s  : toInt(match[SECOND])                       * sign,
							ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
					};
			} else if (!!(match = isoRegex.exec(input))) {
					sign = (match[1] === '-') ? -1 : 1;
					duration = {
							y : parseIso(match[2], sign),
							M : parseIso(match[3], sign),
							w : parseIso(match[4], sign),
							d : parseIso(match[5], sign),
							h : parseIso(match[6], sign),
							m : parseIso(match[7], sign),
							s : parseIso(match[8], sign)
					};
			} else if (duration == null) {// checks for null or undefined
					duration = {};
			} else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
					diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

					duration = {};
					duration.ms = diffRes.milliseconds;
					duration.M = diffRes.months;
			}

			ret = new Duration(duration);

			if (isDuration(input) && hasOwnProp(input, '_locale')) {
					ret._locale = input._locale;
			}

			return ret;
	}

	createDuration.fn = Duration.prototype;
	createDuration.invalid = createInvalid$1;

	function parseIso (inp, sign) {
			// We'd normally use ~~inp for this, but unfortunately it also
			// converts floats to ints.
			// inp may be undefined, so careful calling replace on it.
			var res = inp && parseFloat(inp.replace(',', '.'));
			// apply sign while we're at it
			return (isNaN(res) ? 0 : res) * sign;
	}

	function positiveMomentsDifference(base, other) {
			var res = {};

			res.months = other.month() - base.month() +
					(other.year() - base.year()) * 12;
			if (base.clone().add(res.months, 'M').isAfter(other)) {
					--res.months;
			}

			res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

			return res;
	}

	function momentsDifference(base, other) {
			var res;
			if (!(base.isValid() && other.isValid())) {
					return {milliseconds: 0, months: 0};
			}

			other = cloneWithOffset(other, base);
			if (base.isBefore(other)) {
					res = positiveMomentsDifference(base, other);
			} else {
					res = positiveMomentsDifference(other, base);
					res.milliseconds = -res.milliseconds;
					res.months = -res.months;
			}

			return res;
	}

	// TODO: remove 'name' arg after deprecation is removed
	function createAdder(direction, name) {
			return function (val, period) {
					var dur, tmp;
					//invert the arguments, but complain about it
					if (period !== null && !isNaN(+period)) {
							deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
							'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
							tmp = val; val = period; period = tmp;
					}

					val = typeof val === 'string' ? +val : val;
					dur = createDuration(val, period);
					addSubtract(this, dur, direction);
					return this;
			};
	}

	function addSubtract (mom, duration, isAdding, updateOffset) {
			var milliseconds = duration._milliseconds,
					days = absRound(duration._days),
					months = absRound(duration._months);

			if (!mom.isValid()) {
					// No op
					return;
			}

			updateOffset = updateOffset == null ? true : updateOffset;

			if (months) {
					setMonth(mom, get(mom, 'Month') + months * isAdding);
			}
			if (days) {
					set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
			}
			if (milliseconds) {
					mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
			}
			if (updateOffset) {
					hooks.updateOffset(mom, days || months);
			}
	}

	var add      = createAdder(1, 'add');
	var subtract = createAdder(-1, 'subtract');

	function getCalendarFormat(myMoment, now) {
			var diff = myMoment.diff(now, 'days', true);
			return diff < -6 ? 'sameElse' :
							diff < -1 ? 'lastWeek' :
							diff < 0 ? 'lastDay' :
							diff < 1 ? 'sameDay' :
							diff < 2 ? 'nextDay' :
							diff < 7 ? 'nextWeek' : 'sameElse';
	}

	function calendar$1 (time, formats) {
			// We want to compare the start of today, vs this.
			// Getting start-of-today depends on whether we're local/utc/offset or not.
			var now = time || createLocal(),
					sod = cloneWithOffset(now, this).startOf('day'),
					format = hooks.calendarFormat(this, sod) || 'sameElse';

			var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

			return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
	}

	function clone () {
			return new Moment(this);
	}

	function isAfter (input, units) {
			var localInput = isMoment(input) ? input : createLocal(input);
			if (!(this.isValid() && localInput.isValid())) {
					return false;
			}
			units = normalizeUnits(units) || 'millisecond';
			if (units === 'millisecond') {
					return this.valueOf() > localInput.valueOf();
			} else {
					return localInput.valueOf() < this.clone().startOf(units).valueOf();
			}
	}

	function isBefore (input, units) {
			var localInput = isMoment(input) ? input : createLocal(input);
			if (!(this.isValid() && localInput.isValid())) {
					return false;
			}
			units = normalizeUnits(units) || 'millisecond';
			if (units === 'millisecond') {
					return this.valueOf() < localInput.valueOf();
			} else {
					return this.clone().endOf(units).valueOf() < localInput.valueOf();
			}
	}

	function isBetween (from, to, units, inclusivity) {
			var localFrom = isMoment(from) ? from : createLocal(from),
					localTo = isMoment(to) ? to : createLocal(to);
			if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {
					return false;
			}
			inclusivity = inclusivity || '()';
			return (inclusivity[0] === '(' ? this.isAfter(localFrom, units) : !this.isBefore(localFrom, units)) &&
					(inclusivity[1] === ')' ? this.isBefore(localTo, units) : !this.isAfter(localTo, units));
	}

	function isSame (input, units) {
			var localInput = isMoment(input) ? input : createLocal(input),
					inputMs;
			if (!(this.isValid() && localInput.isValid())) {
					return false;
			}
			units = normalizeUnits(units) || 'millisecond';
			if (units === 'millisecond') {
					return this.valueOf() === localInput.valueOf();
			} else {
					inputMs = localInput.valueOf();
					return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
			}
	}

	function isSameOrAfter (input, units) {
			return this.isSame(input, units) || this.isAfter(input, units);
	}

	function isSameOrBefore (input, units) {
			return this.isSame(input, units) || this.isBefore(input, units);
	}

	function diff (input, units, asFloat) {
			var that,
					zoneDelta,
					output;

			if (!this.isValid()) {
					return NaN;
			}

			that = cloneWithOffset(input, this);

			if (!that.isValid()) {
					return NaN;
			}

			zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

			units = normalizeUnits(units);

			switch (units) {
					case 'year': output = monthDiff(this, that) / 12; break;
					case 'month': output = monthDiff(this, that); break;
					case 'quarter': output = monthDiff(this, that) / 3; break;
					case 'second': output = (this - that) / 1e3; break; // 1000
					case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
					case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
					case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
					case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
					default: output = this - that;
			}

			return asFloat ? output : absFloor(output);
	}

	function monthDiff (a, b) {
			// difference in months
			var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
					// b is in (anchor - 1 month, anchor + 1 month)
					anchor = a.clone().add(wholeMonthDiff, 'months'),
					anchor2, adjust;

			if (b - anchor < 0) {
					anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
					// linear across the month
					adjust = (b - anchor) / (anchor - anchor2);
			} else {
					anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
					// linear across the month
					adjust = (b - anchor) / (anchor2 - anchor);
			}

			//check for negative zero, return zero if negative zero
			return -(wholeMonthDiff + adjust) || 0;
	}

	hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
	hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

	function toString () {
			return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
	}

	function toISOString(keepOffset) {
			if (!this.isValid()) {
					return null;
			}
			var utc = keepOffset !== true;
			var m = utc ? this.clone().utc() : this;
			if (m.year() < 0 || m.year() > 9999) {
					return formatMoment(m, utc ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ');
			}
			if (isFunction(Date.prototype.toISOString)) {
					// native implementation is ~50x faster, use it when we can
					if (utc) {
							return this.toDate().toISOString();
					} else {
							return new Date(this.valueOf() + this.utcOffset() * 60 * 1000).toISOString().replace('Z', formatMoment(m, 'Z'));
					}
			}
			return formatMoment(m, utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ');
	}

	/**
	 * Return a human readable representation of a moment that can
	 * also be evaluated to get a new moment which is the same
	 *
	 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
	 */
	function inspect () {
			if (!this.isValid()) {
					return 'moment.invalid(/* ' + this._i + ' */)';
			}
			var func = 'moment';
			var zone = '';
			if (!this.isLocal()) {
					func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
					zone = 'Z';
			}
			var prefix = '[' + func + '("]';
			var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
			var datetime = '-MM-DD[T]HH:mm:ss.SSS';
			var suffix = zone + '[")]';

			return this.format(prefix + year + datetime + suffix);
	}

	function format (inputString) {
			if (!inputString) {
					inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
			}
			var output = formatMoment(this, inputString);
			return this.localeData().postformat(output);
	}

	function from (time, withoutSuffix) {
			if (this.isValid() &&
							((isMoment(time) && time.isValid()) ||
							 createLocal(time).isValid())) {
					return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
			} else {
					return this.localeData().invalidDate();
			}
	}

	function fromNow (withoutSuffix) {
			return this.from(createLocal(), withoutSuffix);
	}

	function to (time, withoutSuffix) {
			if (this.isValid() &&
							((isMoment(time) && time.isValid()) ||
							 createLocal(time).isValid())) {
					return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
			} else {
					return this.localeData().invalidDate();
			}
	}

	function toNow (withoutSuffix) {
			return this.to(createLocal(), withoutSuffix);
	}

	// If passed a locale key, it will set the locale for this
	// instance.  Otherwise, it will return the locale configuration
	// variables for this instance.
	function locale (key) {
			var newLocaleData;

			if (key === undefined) {
					return this._locale._abbr;
			} else {
					newLocaleData = getLocale(key);
					if (newLocaleData != null) {
							this._locale = newLocaleData;
					}
					return this;
			}
	}

	var lang = deprecate(
			'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
			function (key) {
					if (key === undefined) {
							return this.localeData();
					} else {
							return this.locale(key);
					}
			}
	);

	function localeData () {
			return this._locale;
	}

	var MS_PER_SECOND = 1000;
	var MS_PER_MINUTE = 60 * MS_PER_SECOND;
	var MS_PER_HOUR = 60 * MS_PER_MINUTE;
	var MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;

	// actual modulo - handles negative numbers (for dates before 1970):
	function mod$1(dividend, divisor) {
			return (dividend % divisor + divisor) % divisor;
	}

	function localStartOfDate(y, m, d) {
			// the date constructor remaps years 0-99 to 1900-1999
			if (y < 100 && y >= 0) {
					// preserve leap years using a full 400 year cycle, then reset
					return new Date(y + 400, m, d) - MS_PER_400_YEARS;
			} else {
					return new Date(y, m, d).valueOf();
			}
	}

	function utcStartOfDate(y, m, d) {
			// Date.UTC remaps years 0-99 to 1900-1999
			if (y < 100 && y >= 0) {
					// preserve leap years using a full 400 year cycle, then reset
					return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;
			} else {
					return Date.UTC(y, m, d);
			}
	}

	function startOf (units) {
			var time;
			units = normalizeUnits(units);
			if (units === undefined || units === 'millisecond' || !this.isValid()) {
					return this;
			}

			var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;

			switch (units) {
					case 'year':
							time = startOfDate(this.year(), 0, 1);
							break;
					case 'quarter':
							time = startOfDate(this.year(), this.month() - this.month() % 3, 1);
							break;
					case 'month':
							time = startOfDate(this.year(), this.month(), 1);
							break;
					case 'week':
							time = startOfDate(this.year(), this.month(), this.date() - this.weekday());
							break;
					case 'isoWeek':
							time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1));
							break;
					case 'day':
					case 'date':
							time = startOfDate(this.year(), this.month(), this.date());
							break;
					case 'hour':
							time = this._d.valueOf();
							time -= mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR);
							break;
					case 'minute':
							time = this._d.valueOf();
							time -= mod$1(time, MS_PER_MINUTE);
							break;
					case 'second':
							time = this._d.valueOf();
							time -= mod$1(time, MS_PER_SECOND);
							break;
			}

			this._d.setTime(time);
			hooks.updateOffset(this, true);
			return this;
	}

	function endOf (units) {
			var time;
			units = normalizeUnits(units);
			if (units === undefined || units === 'millisecond' || !this.isValid()) {
					return this;
			}

			var startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;

			switch (units) {
					case 'year':
							time = startOfDate(this.year() + 1, 0, 1) - 1;
							break;
					case 'quarter':
							time = startOfDate(this.year(), this.month() - this.month() % 3 + 3, 1) - 1;
							break;
					case 'month':
							time = startOfDate(this.year(), this.month() + 1, 1) - 1;
							break;
					case 'week':
							time = startOfDate(this.year(), this.month(), this.date() - this.weekday() + 7) - 1;
							break;
					case 'isoWeek':
							time = startOfDate(this.year(), this.month(), this.date() - (this.isoWeekday() - 1) + 7) - 1;
							break;
					case 'day':
					case 'date':
							time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;
							break;
					case 'hour':
							time = this._d.valueOf();
							time += MS_PER_HOUR - mod$1(time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE), MS_PER_HOUR) - 1;
							break;
					case 'minute':
							time = this._d.valueOf();
							time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;
							break;
					case 'second':
							time = this._d.valueOf();
							time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;
							break;
			}

			this._d.setTime(time);
			hooks.updateOffset(this, true);
			return this;
	}

	function valueOf () {
			return this._d.valueOf() - ((this._offset || 0) * 60000);
	}

	function unix () {
			return Math.floor(this.valueOf() / 1000);
	}

	function toDate () {
			return new Date(this.valueOf());
	}

	function toArray () {
			var m = this;
			return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
	}

	function toObject () {
			var m = this;
			return {
					years: m.year(),
					months: m.month(),
					date: m.date(),
					hours: m.hours(),
					minutes: m.minutes(),
					seconds: m.seconds(),
					milliseconds: m.milliseconds()
			};
	}

	function toJSON () {
			// new Date(NaN).toJSON() === null
			return this.isValid() ? this.toISOString() : null;
	}

	function isValid$2 () {
			return isValid(this);
	}

	function parsingFlags () {
			return extend({}, getParsingFlags(this));
	}

	function invalidAt () {
			return getParsingFlags(this).overflow;
	}

	function creationData() {
			return {
					input: this._i,
					format: this._f,
					locale: this._locale,
					isUTC: this._isUTC,
					strict: this._strict
			};
	}

	// FORMATTING

	addFormatToken(0, ['gg', 2], 0, function () {
			return this.weekYear() % 100;
	});

	addFormatToken(0, ['GG', 2], 0, function () {
			return this.isoWeekYear() % 100;
	});

	function addWeekYearFormatToken (token, getter) {
			addFormatToken(0, [token, token.length], 0, getter);
	}

	addWeekYearFormatToken('gggg',     'weekYear');
	addWeekYearFormatToken('ggggg',    'weekYear');
	addWeekYearFormatToken('GGGG',  'isoWeekYear');
	addWeekYearFormatToken('GGGGG', 'isoWeekYear');

	// ALIASES

	addUnitAlias('weekYear', 'gg');
	addUnitAlias('isoWeekYear', 'GG');

	// PRIORITY

	addUnitPriority('weekYear', 1);
	addUnitPriority('isoWeekYear', 1);


	// PARSING

	addRegexToken('G',      matchSigned);
	addRegexToken('g',      matchSigned);
	addRegexToken('GG',     match1to2, match2);
	addRegexToken('gg',     match1to2, match2);
	addRegexToken('GGGG',   match1to4, match4);
	addRegexToken('gggg',   match1to4, match4);
	addRegexToken('GGGGG',  match1to6, match6);
	addRegexToken('ggggg',  match1to6, match6);

	addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
			week[token.substr(0, 2)] = toInt(input);
	});

	addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
			week[token] = hooks.parseTwoDigitYear(input);
	});

	// MOMENTS

	function getSetWeekYear (input) {
			return getSetWeekYearHelper.call(this,
							input,
							this.week(),
							this.weekday(),
							this.localeData()._week.dow,
							this.localeData()._week.doy);
	}

	function getSetISOWeekYear (input) {
			return getSetWeekYearHelper.call(this,
							input, this.isoWeek(), this.isoWeekday(), 1, 4);
	}

	function getISOWeeksInYear () {
			return weeksInYear(this.year(), 1, 4);
	}

	function getWeeksInYear () {
			var weekInfo = this.localeData()._week;
			return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
	}

	function getSetWeekYearHelper(input, week, weekday, dow, doy) {
			var weeksTarget;
			if (input == null) {
					return weekOfYear(this, dow, doy).year;
			} else {
					weeksTarget = weeksInYear(input, dow, doy);
					if (week > weeksTarget) {
							week = weeksTarget;
					}
					return setWeekAll.call(this, input, week, weekday, dow, doy);
			}
	}

	function setWeekAll(weekYear, week, weekday, dow, doy) {
			var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
					date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

			this.year(date.getUTCFullYear());
			this.month(date.getUTCMonth());
			this.date(date.getUTCDate());
			return this;
	}

	// FORMATTING

	addFormatToken('Q', 0, 'Qo', 'quarter');

	// ALIASES

	addUnitAlias('quarter', 'Q');

	// PRIORITY

	addUnitPriority('quarter', 7);

	// PARSING

	addRegexToken('Q', match1);
	addParseToken('Q', function (input, array) {
			array[MONTH] = (toInt(input) - 1) * 3;
	});

	// MOMENTS

	function getSetQuarter (input) {
			return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
	}

	// FORMATTING

	addFormatToken('D', ['DD', 2], 'Do', 'date');

	// ALIASES

	addUnitAlias('date', 'D');

	// PRIORITY
	addUnitPriority('date', 9);

	// PARSING

	addRegexToken('D',  match1to2);
	addRegexToken('DD', match1to2, match2);
	addRegexToken('Do', function (isStrict, locale) {
			// TODO: Remove "ordinalParse" fallback in next major release.
			return isStrict ?
				(locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
				locale._dayOfMonthOrdinalParseLenient;
	});

	addParseToken(['D', 'DD'], DATE);
	addParseToken('Do', function (input, array) {
			array[DATE] = toInt(input.match(match1to2)[0]);
	});

	// MOMENTS

	var getSetDayOfMonth = makeGetSet('Date', true);

	// FORMATTING

	addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

	// ALIASES

	addUnitAlias('dayOfYear', 'DDD');

	// PRIORITY
	addUnitPriority('dayOfYear', 4);

	// PARSING

	addRegexToken('DDD',  match1to3);
	addRegexToken('DDDD', match3);
	addParseToken(['DDD', 'DDDD'], function (input, array, config) {
			config._dayOfYear = toInt(input);
	});

	// HELPERS

	// MOMENTS

	function getSetDayOfYear (input) {
			var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
			return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
	}

	// FORMATTING

	addFormatToken('m', ['mm', 2], 0, 'minute');

	// ALIASES

	addUnitAlias('minute', 'm');

	// PRIORITY

	addUnitPriority('minute', 14);

	// PARSING

	addRegexToken('m',  match1to2);
	addRegexToken('mm', match1to2, match2);
	addParseToken(['m', 'mm'], MINUTE);

	// MOMENTS

	var getSetMinute = makeGetSet('Minutes', false);

	// FORMATTING

	addFormatToken('s', ['ss', 2], 0, 'second');

	// ALIASES

	addUnitAlias('second', 's');

	// PRIORITY

	addUnitPriority('second', 15);

	// PARSING

	addRegexToken('s',  match1to2);
	addRegexToken('ss', match1to2, match2);
	addParseToken(['s', 'ss'], SECOND);

	// MOMENTS

	var getSetSecond = makeGetSet('Seconds', false);

	// FORMATTING

	addFormatToken('S', 0, 0, function () {
			return ~~(this.millisecond() / 100);
	});

	addFormatToken(0, ['SS', 2], 0, function () {
			return ~~(this.millisecond() / 10);
	});

	addFormatToken(0, ['SSS', 3], 0, 'millisecond');
	addFormatToken(0, ['SSSS', 4], 0, function () {
			return this.millisecond() * 10;
	});
	addFormatToken(0, ['SSSSS', 5], 0, function () {
			return this.millisecond() * 100;
	});
	addFormatToken(0, ['SSSSSS', 6], 0, function () {
			return this.millisecond() * 1000;
	});
	addFormatToken(0, ['SSSSSSS', 7], 0, function () {
			return this.millisecond() * 10000;
	});
	addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
			return this.millisecond() * 100000;
	});
	addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
			return this.millisecond() * 1000000;
	});


	// ALIASES

	addUnitAlias('millisecond', 'ms');

	// PRIORITY

	addUnitPriority('millisecond', 16);

	// PARSING

	addRegexToken('S',    match1to3, match1);
	addRegexToken('SS',   match1to3, match2);
	addRegexToken('SSS',  match1to3, match3);

	var token;
	for (token = 'SSSS'; token.length <= 9; token += 'S') {
			addRegexToken(token, matchUnsigned);
	}

	function parseMs(input, array) {
			array[MILLISECOND] = toInt(('0.' + input) * 1000);
	}

	for (token = 'S'; token.length <= 9; token += 'S') {
			addParseToken(token, parseMs);
	}
	// MOMENTS

	var getSetMillisecond = makeGetSet('Milliseconds', false);

	// FORMATTING

	addFormatToken('z',  0, 0, 'zoneAbbr');
	addFormatToken('zz', 0, 0, 'zoneName');

	// MOMENTS

	function getZoneAbbr () {
			return this._isUTC ? 'UTC' : '';
	}

	function getZoneName () {
			return this._isUTC ? 'Coordinated Universal Time' : '';
	}

	var proto = Moment.prototype;

	proto.add               = add;
	proto.calendar          = calendar$1;
	proto.clone             = clone;
	proto.diff              = diff;
	proto.endOf             = endOf;
	proto.format            = format;
	proto.from              = from;
	proto.fromNow           = fromNow;
	proto.to                = to;
	proto.toNow             = toNow;
	proto.get               = stringGet;
	proto.invalidAt         = invalidAt;
	proto.isAfter           = isAfter;
	proto.isBefore          = isBefore;
	proto.isBetween         = isBetween;
	proto.isSame            = isSame;
	proto.isSameOrAfter     = isSameOrAfter;
	proto.isSameOrBefore    = isSameOrBefore;
	proto.isValid           = isValid$2;
	proto.lang              = lang;
	proto.locale            = locale;
	proto.localeData        = localeData;
	proto.max               = prototypeMax;
	proto.min               = prototypeMin;
	proto.parsingFlags      = parsingFlags;
	proto.set               = stringSet;
	proto.startOf           = startOf;
	proto.subtract          = subtract;
	proto.toArray           = toArray;
	proto.toObject          = toObject;
	proto.toDate            = toDate;
	proto.toISOString       = toISOString;
	proto.inspect           = inspect;
	proto.toJSON            = toJSON;
	proto.toString          = toString;
	proto.unix              = unix;
	proto.valueOf           = valueOf;
	proto.creationData      = creationData;
	proto.year       = getSetYear;
	proto.isLeapYear = getIsLeapYear;
	proto.weekYear    = getSetWeekYear;
	proto.isoWeekYear = getSetISOWeekYear;
	proto.quarter = proto.quarters = getSetQuarter;
	proto.month       = getSetMonth;
	proto.daysInMonth = getDaysInMonth;
	proto.week           = proto.weeks        = getSetWeek;
	proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
	proto.weeksInYear    = getWeeksInYear;
	proto.isoWeeksInYear = getISOWeeksInYear;
	proto.date       = getSetDayOfMonth;
	proto.day        = proto.days             = getSetDayOfWeek;
	proto.weekday    = getSetLocaleDayOfWeek;
	proto.isoWeekday = getSetISODayOfWeek;
	proto.dayOfYear  = getSetDayOfYear;
	proto.hour = proto.hours = getSetHour;
	proto.minute = proto.minutes = getSetMinute;
	proto.second = proto.seconds = getSetSecond;
	proto.millisecond = proto.milliseconds = getSetMillisecond;
	proto.utcOffset            = getSetOffset;
	proto.utc                  = setOffsetToUTC;
	proto.local                = setOffsetToLocal;
	proto.parseZone            = setOffsetToParsedOffset;
	proto.hasAlignedHourOffset = hasAlignedHourOffset;
	proto.isDST                = isDaylightSavingTime;
	proto.isLocal              = isLocal;
	proto.isUtcOffset          = isUtcOffset;
	proto.isUtc                = isUtc;
	proto.isUTC                = isUtc;
	proto.zoneAbbr = getZoneAbbr;
	proto.zoneName = getZoneName;
	proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
	proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
	proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
	proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
	proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

	function createUnix (input) {
			return createLocal(input * 1000);
	}

	function createInZone () {
			return createLocal.apply(null, arguments).parseZone();
	}

	function preParsePostFormat (string) {
			return string;
	}

	var proto$1 = Locale.prototype;

	proto$1.calendar        = calendar;
	proto$1.longDateFormat  = longDateFormat;
	proto$1.invalidDate     = invalidDate;
	proto$1.ordinal         = ordinal;
	proto$1.preparse        = preParsePostFormat;
	proto$1.postformat      = preParsePostFormat;
	proto$1.relativeTime    = relativeTime;
	proto$1.pastFuture      = pastFuture;
	proto$1.set             = set;

	proto$1.months            =        localeMonths;
	proto$1.monthsShort       =        localeMonthsShort;
	proto$1.monthsParse       =        localeMonthsParse;
	proto$1.monthsRegex       = monthsRegex;
	proto$1.monthsShortRegex  = monthsShortRegex;
	proto$1.week = localeWeek;
	proto$1.firstDayOfYear = localeFirstDayOfYear;
	proto$1.firstDayOfWeek = localeFirstDayOfWeek;

	proto$1.weekdays       =        localeWeekdays;
	proto$1.weekdaysMin    =        localeWeekdaysMin;
	proto$1.weekdaysShort  =        localeWeekdaysShort;
	proto$1.weekdaysParse  =        localeWeekdaysParse;

	proto$1.weekdaysRegex       =        weekdaysRegex;
	proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
	proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

	proto$1.isPM = localeIsPM;
	proto$1.meridiem = localeMeridiem;

	function get$1 (format, index, field, setter) {
			var locale = getLocale();
			var utc = createUTC().set(setter, index);
			return locale[field](utc, format);
	}

	function listMonthsImpl (format, index, field) {
			if (isNumber(format)) {
					index = format;
					format = undefined;
			}

			format = format || '';

			if (index != null) {
					return get$1(format, index, field, 'month');
			}

			var i;
			var out = [];
			for (i = 0; i < 12; i++) {
					out[i] = get$1(format, i, field, 'month');
			}
			return out;
	}

	// ()
	// (5)
	// (fmt, 5)
	// (fmt)
	// (true)
	// (true, 5)
	// (true, fmt, 5)
	// (true, fmt)
	function listWeekdaysImpl (localeSorted, format, index, field) {
			if (typeof localeSorted === 'boolean') {
					if (isNumber(format)) {
							index = format;
							format = undefined;
					}

					format = format || '';
			} else {
					format = localeSorted;
					index = format;
					localeSorted = false;

					if (isNumber(format)) {
							index = format;
							format = undefined;
					}

					format = format || '';
			}

			var locale = getLocale(),
					shift = localeSorted ? locale._week.dow : 0;

			if (index != null) {
					return get$1(format, (index + shift) % 7, field, 'day');
			}

			var i;
			var out = [];
			for (i = 0; i < 7; i++) {
					out[i] = get$1(format, (i + shift) % 7, field, 'day');
			}
			return out;
	}

	function listMonths (format, index) {
			return listMonthsImpl(format, index, 'months');
	}

	function listMonthsShort (format, index) {
			return listMonthsImpl(format, index, 'monthsShort');
	}

	function listWeekdays (localeSorted, format, index) {
			return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
	}

	function listWeekdaysShort (localeSorted, format, index) {
			return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
	}

	function listWeekdaysMin (localeSorted, format, index) {
			return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
	}

	getSetGlobalLocale('en', {
			dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
			ordinal : function (number) {
					var b = number % 10,
							output = (toInt(number % 100 / 10) === 1) ? 'th' :
							(b === 1) ? 'st' :
							(b === 2) ? 'nd' :
							(b === 3) ? 'rd' : 'th';
					return number + output;
			}
	});

	// Side effect imports

	hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
	hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

	var mathAbs = Math.abs;

	function abs () {
			var data           = this._data;

			this._milliseconds = mathAbs(this._milliseconds);
			this._days         = mathAbs(this._days);
			this._months       = mathAbs(this._months);

			data.milliseconds  = mathAbs(data.milliseconds);
			data.seconds       = mathAbs(data.seconds);
			data.minutes       = mathAbs(data.minutes);
			data.hours         = mathAbs(data.hours);
			data.months        = mathAbs(data.months);
			data.years         = mathAbs(data.years);

			return this;
	}

	function addSubtract$1 (duration, input, value, direction) {
			var other = createDuration(input, value);

			duration._milliseconds += direction * other._milliseconds;
			duration._days         += direction * other._days;
			duration._months       += direction * other._months;

			return duration._bubble();
	}

	// supports only 2.0-style add(1, 's') or add(duration)
	function add$1 (input, value) {
			return addSubtract$1(this, input, value, 1);
	}

	// supports only 2.0-style subtract(1, 's') or subtract(duration)
	function subtract$1 (input, value) {
			return addSubtract$1(this, input, value, -1);
	}

	function absCeil (number) {
			if (number < 0) {
					return Math.floor(number);
			} else {
					return Math.ceil(number);
			}
	}

	function bubble () {
			var milliseconds = this._milliseconds;
			var days         = this._days;
			var months       = this._months;
			var data         = this._data;
			var seconds, minutes, hours, years, monthsFromDays;

			// if we have a mix of positive and negative values, bubble down first
			// check: https://github.com/moment/moment/issues/2166
			if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
							(milliseconds <= 0 && days <= 0 && months <= 0))) {
					milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
					days = 0;
					months = 0;
			}

			// The following code bubbles up values, see the tests for
			// examples of what that means.
			data.milliseconds = milliseconds % 1000;

			seconds           = absFloor(milliseconds / 1000);
			data.seconds      = seconds % 60;

			minutes           = absFloor(seconds / 60);
			data.minutes      = minutes % 60;

			hours             = absFloor(minutes / 60);
			data.hours        = hours % 24;

			days += absFloor(hours / 24);

			// convert days to months
			monthsFromDays = absFloor(daysToMonths(days));
			months += monthsFromDays;
			days -= absCeil(monthsToDays(monthsFromDays));

			// 12 months -> 1 year
			years = absFloor(months / 12);
			months %= 12;

			data.days   = days;
			data.months = months;
			data.years  = years;

			return this;
	}

	function daysToMonths (days) {
			// 400 years have 146097 days (taking into account leap year rules)
			// 400 years have 12 months === 4800
			return days * 4800 / 146097;
	}

	function monthsToDays (months) {
			// the reverse of daysToMonths
			return months * 146097 / 4800;
	}

	function as (units) {
			if (!this.isValid()) {
					return NaN;
			}
			var days;
			var months;
			var milliseconds = this._milliseconds;

			units = normalizeUnits(units);

			if (units === 'month' || units === 'quarter' || units === 'year') {
					days = this._days + milliseconds / 864e5;
					months = this._months + daysToMonths(days);
					switch (units) {
							case 'month':   return months;
							case 'quarter': return months / 3;
							case 'year':    return months / 12;
					}
			} else {
					// handle milliseconds separately because of floating point math errors (issue #1867)
					days = this._days + Math.round(monthsToDays(this._months));
					switch (units) {
							case 'week'   : return days / 7     + milliseconds / 6048e5;
							case 'day'    : return days         + milliseconds / 864e5;
							case 'hour'   : return days * 24    + milliseconds / 36e5;
							case 'minute' : return days * 1440  + milliseconds / 6e4;
							case 'second' : return days * 86400 + milliseconds / 1000;
							// Math.floor prevents floating point math errors here
							case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
							default: throw new Error('Unknown unit ' + units);
					}
			}
	}

	// TODO: Use this.as('ms')?
	function valueOf$1 () {
			if (!this.isValid()) {
					return NaN;
			}
			return (
					this._milliseconds +
					this._days * 864e5 +
					(this._months % 12) * 2592e6 +
					toInt(this._months / 12) * 31536e6
			);
	}

	function makeAs (alias) {
			return function () {
					return this.as(alias);
			};
	}

	var asMilliseconds = makeAs('ms');
	var asSeconds      = makeAs('s');
	var asMinutes      = makeAs('m');
	var asHours        = makeAs('h');
	var asDays         = makeAs('d');
	var asWeeks        = makeAs('w');
	var asMonths       = makeAs('M');
	var asQuarters     = makeAs('Q');
	var asYears        = makeAs('y');

	function clone$1 () {
			return createDuration(this);
	}

	function get$2 (units) {
			units = normalizeUnits(units);
			return this.isValid() ? this[units + 's']() : NaN;
	}

	function makeGetter(name) {
			return function () {
					return this.isValid() ? this._data[name] : NaN;
			};
	}

	var milliseconds = makeGetter('milliseconds');
	var seconds      = makeGetter('seconds');
	var minutes      = makeGetter('minutes');
	var hours        = makeGetter('hours');
	var days         = makeGetter('days');
	var months       = makeGetter('months');
	var years        = makeGetter('years');

	function weeks () {
			return absFloor(this.days() / 7);
	}

	var round = Math.round;
	var thresholds = {
			ss: 44,         // a few seconds to seconds
			s : 45,         // seconds to minute
			m : 45,         // minutes to hour
			h : 22,         // hours to day
			d : 26,         // days to month
			M : 11          // months to year
	};

	// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
	function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
			return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
	}

	function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
			var duration = createDuration(posNegDuration).abs();
			var seconds  = round(duration.as('s'));
			var minutes  = round(duration.as('m'));
			var hours    = round(duration.as('h'));
			var days     = round(duration.as('d'));
			var months   = round(duration.as('M'));
			var years    = round(duration.as('y'));

			var a = seconds <= thresholds.ss && ['s', seconds]  ||
							seconds < thresholds.s   && ['ss', seconds] ||
							minutes <= 1             && ['m']           ||
							minutes < thresholds.m   && ['mm', minutes] ||
							hours   <= 1             && ['h']           ||
							hours   < thresholds.h   && ['hh', hours]   ||
							days    <= 1             && ['d']           ||
							days    < thresholds.d   && ['dd', days]    ||
							months  <= 1             && ['M']           ||
							months  < thresholds.M   && ['MM', months]  ||
							years   <= 1             && ['y']           || ['yy', years];

			a[2] = withoutSuffix;
			a[3] = +posNegDuration > 0;
			a[4] = locale;
			return substituteTimeAgo.apply(null, a);
	}

	// This function allows you to set the rounding function for relative time strings
	function getSetRelativeTimeRounding (roundingFunction) {
			if (roundingFunction === undefined) {
					return round;
			}
			if (typeof(roundingFunction) === 'function') {
					round = roundingFunction;
					return true;
			}
			return false;
	}

	// This function allows you to set a threshold for relative time strings
	function getSetRelativeTimeThreshold (threshold, limit) {
			if (thresholds[threshold] === undefined) {
					return false;
			}
			if (limit === undefined) {
					return thresholds[threshold];
			}
			thresholds[threshold] = limit;
			if (threshold === 's') {
					thresholds.ss = limit - 1;
			}
			return true;
	}

	function humanize (withSuffix) {
			if (!this.isValid()) {
					return this.localeData().invalidDate();
			}

			var locale = this.localeData();
			var output = relativeTime$1(this, !withSuffix, locale);

			if (withSuffix) {
					output = locale.pastFuture(+this, output);
			}

			return locale.postformat(output);
	}

	var abs$1 = Math.abs;

	function sign(x) {
			return ((x > 0) - (x < 0)) || +x;
	}

	function toISOString$1() {
			// for ISO strings we do not use the normal bubbling rules:
			//  * milliseconds bubble up until they become hours
			//  * days do not bubble at all
			//  * months bubble up until they become years
			// This is because there is no context-free conversion between hours and days
			// (think of clock changes)
			// and also not between days and months (28-31 days per month)
			if (!this.isValid()) {
					return this.localeData().invalidDate();
			}

			var seconds = abs$1(this._milliseconds) / 1000;
			var days         = abs$1(this._days);
			var months       = abs$1(this._months);
			var minutes, hours, years;

			// 3600 seconds -> 60 minutes -> 1 hour
			minutes           = absFloor(seconds / 60);
			hours             = absFloor(minutes / 60);
			seconds %= 60;
			minutes %= 60;

			// 12 months -> 1 year
			years  = absFloor(months / 12);
			months %= 12;


			// inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
			var Y = years;
			var M = months;
			var D = days;
			var h = hours;
			var m = minutes;
			var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
			var total = this.asSeconds();

			if (!total) {
					// this is the same as C#'s (Noda) and python (isodate)...
					// but not other JS (goog.date)
					return 'P0D';
			}

			var totalSign = total < 0 ? '-' : '';
			var ymSign = sign(this._months) !== sign(total) ? '-' : '';
			var daysSign = sign(this._days) !== sign(total) ? '-' : '';
			var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';

			return totalSign + 'P' +
					(Y ? ymSign + Y + 'Y' : '') +
					(M ? ymSign + M + 'M' : '') +
					(D ? daysSign + D + 'D' : '') +
					((h || m || s) ? 'T' : '') +
					(h ? hmsSign + h + 'H' : '') +
					(m ? hmsSign + m + 'M' : '') +
					(s ? hmsSign + s + 'S' : '');
	}

	var proto$2 = Duration.prototype;

	proto$2.isValid        = isValid$1;
	proto$2.abs            = abs;
	proto$2.add            = add$1;
	proto$2.subtract       = subtract$1;
	proto$2.as             = as;
	proto$2.asMilliseconds = asMilliseconds;
	proto$2.asSeconds      = asSeconds;
	proto$2.asMinutes      = asMinutes;
	proto$2.asHours        = asHours;
	proto$2.asDays         = asDays;
	proto$2.asWeeks        = asWeeks;
	proto$2.asMonths       = asMonths;
	proto$2.asQuarters     = asQuarters;
	proto$2.asYears        = asYears;
	proto$2.valueOf        = valueOf$1;
	proto$2._bubble        = bubble;
	proto$2.clone          = clone$1;
	proto$2.get            = get$2;
	proto$2.milliseconds   = milliseconds;
	proto$2.seconds        = seconds;
	proto$2.minutes        = minutes;
	proto$2.hours          = hours;
	proto$2.days           = days;
	proto$2.weeks          = weeks;
	proto$2.months         = months;
	proto$2.years          = years;
	proto$2.humanize       = humanize;
	proto$2.toISOString    = toISOString$1;
	proto$2.toString       = toISOString$1;
	proto$2.toJSON         = toISOString$1;
	proto$2.locale         = locale;
	proto$2.localeData     = localeData;

	proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
	proto$2.lang = lang;

	// Side effect imports

	// FORMATTING

	addFormatToken('X', 0, 0, 'unix');
	addFormatToken('x', 0, 0, 'valueOf');

	// PARSING

	addRegexToken('x', matchSigned);
	addRegexToken('X', matchTimestamp);
	addParseToken('X', function (input, array, config) {
			config._d = new Date(parseFloat(input, 10) * 1000);
	});
	addParseToken('x', function (input, array, config) {
			config._d = new Date(toInt(input));
	});

	// Side effect imports


	hooks.version = '2.24.0';

	setHookCallback(createLocal);

	hooks.fn                    = proto;
	hooks.min                   = min;
	hooks.max                   = max;
	hooks.now                   = now;
	hooks.utc                   = createUTC;
	hooks.unix                  = createUnix;
	hooks.months                = listMonths;
	hooks.isDate                = isDate;
	hooks.locale                = getSetGlobalLocale;
	hooks.invalid               = createInvalid;
	hooks.duration              = createDuration;
	hooks.isMoment              = isMoment;
	hooks.weekdays              = listWeekdays;
	hooks.parseZone             = createInZone;
	hooks.localeData            = getLocale;
	hooks.isDuration            = isDuration;
	hooks.monthsShort           = listMonthsShort;
	hooks.weekdaysMin           = listWeekdaysMin;
	hooks.defineLocale          = defineLocale;
	hooks.updateLocale          = updateLocale;
	hooks.locales               = listLocales;
	hooks.weekdaysShort         = listWeekdaysShort;
	hooks.normalizeUnits        = normalizeUnits;
	hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
	hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
	hooks.calendarFormat        = getCalendarFormat;
	hooks.prototype             = proto;

	// currently HTML5 input type only supports 24-hour formats
	hooks.HTML5_FMT = {
			DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm',             // <input type="datetime-local" />
			DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss',  // <input type="datetime-local" step="1" />
			DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS',   // <input type="datetime-local" step="0.001" />
			DATE: 'YYYY-MM-DD',                             // <input type="date" />
			TIME: 'HH:mm',                                  // <input type="time" />
			TIME_SECONDS: 'HH:mm:ss',                       // <input type="time" step="1" />
			TIME_MS: 'HH:mm:ss.SSS',                        // <input type="time" step="0.001" />
			WEEK: 'GGGG-[W]WW',                             // <input type="week" />
			MONTH: 'YYYY-MM'                                // <input type="month" />
	};

	return hooks;

})));